# FlixFluent — full corpus > Concatenated content of every indexed FlixFluent page, in Markdown. Generated from the same typed source modules that render the visible HTML pages, so this corpus does not drift from the site. Site: https://flixfluent.com Install: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg Email: mail@flixfluent.com --- # Homepage > FlixFluent is a Chrome extension plus companion web app. The extension adds dual subtitles, hover contextual translation, and click-to-deconstruct word and sentence analysis to Netflix and YouTube. The base subtitle line uses the platform's own track in your language when one exists and is AI-translated in context when it does not; auto-generated (ASR) and auto-translated YouTube caption tracks are visibly flagged. Click any word for its dictionary form, stem, particle, and grammar role. Click any sentence for a structural breakdown. Inside any explanation, every word is itself clickable for a deeper explanation (the "digger"). Word translations and pronunciation audio are generated per exact sentence — no dictionary lookups — and cached. Native romanization for non-Latin scripts. Auto-pause for shadowing. The web app (app.flixfluent.com) adds an FSRS-based vocabulary trainer built from the words you look up while watching (Anki / CSV import supported) and CEFR-mapped proficiency tests for English, Korean, German, French, and Spanish. $17 / month, $159 / year, or $399 lifetime, with a 7-day free trial and 30-day money-back guarantee. ## Features - Dual subtitles on Netflix and YouTube - AI translation of the native subtitle line when the platform has no subtitle track in your language - Visible quality warnings on auto-generated (ASR) and auto-translated YouTube caption tracks - Hover translation: in-context AI word translations generated per word and sentence — no dictionary lookups - Click-to-deconstruct word analysis (dictionary form, stem, particle, grammar role) - Full sentence deconstruction - Digger: every word inside an explanation is itself clickable, opening a deeper explanation with back navigation - In-context text-to-speech pronunciation audio generated for the exact sentence, then cached - Vocabulary trainer (web app): FSRS-scheduled flashcards built from the words you look up while watching, with typing input and Anki / CSV import - Proficiency tests for English, Korean, German, French, and Spanish, mapped to CEFR levels with per-skill breakdown - Auto-pause at end of subtitle line - Line navigation (previous / next subtitle) - Playback speed 0.5x to 1.5x - Romanization for non-Latin scripts (Korean, Japanese, Chinese, others) ## Pricing - $17.00 / month (USD) - $159 / year or $399 one-time lifetime - 7-day free trial - 30-day money-back guarantee Install: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # Dual subtitles for Netflix and YouTube > Dual subtitles — also called bilingual subtitles — show two languages at once: the language you are learning on top and your own language underneath. FlixFluent renders them on Netflix and YouTube from one Chrome extension. The line you are learning comes from the platform's own subtitle track; the translation line uses the platform's native-language track when one exists and is AI-translated from the original dialogue when it does not. Auto-generated YouTube caption tracks are detected and visibly flagged. Every word in both lines is hoverable and clickable for in-context translation, deconstruction, and pronunciation audio. Canonical: https://flixfluent.com/en/dual-subtitles/ ## Key facts - One Chrome extension covers Netflix and YouTube dual subtitles - Native-track-first: the platform's own subtitle track in your language is used whenever it exists; AI translation is the fallback, not the default - Auto-generated (ASR) and auto-translated YouTube tracks are detected and visibly flagged - A subtitle track in the language you are learning must exist on the platform - 28 learnable languages in any pairing; 24 interface languages - $17 / month, $159 / year, or $399 lifetime — 7-day free trial, 30-day money-back guarantee ## What are dual subtitles? Dual subtitles show two subtitle tracks at the same time — the language you are learning and a language you already understand — so you can see how something was said and what it means on the same screen. The feature goes by several names: bilingual subtitles, double subtitles, or simply two subtitles at once. Netflix's and YouTube's own players only display one track at a time, which is why learners use a browser extension to render the second line. The value for language learning is the pairing itself. The target-language line shows the exact words spoken; the native-language line anchors the meaning, so you can keep watching without breaking flow to look things up — and when you do want to dig in, every word is one hover away. ## How the FlixFluent dual subtitle extension works FlixFluent reads the platform's own subtitle data and renders both lines in its own overlay — the target-language track on top, and the best available source for your language underneath. The translation line is native-track-first: when Netflix or YouTube carries a subtitle track in your language, FlixFluent uses that track directly, matched to the target-language cues by their timestamps. Platform tracks are written by humans, so they are shown as-is — FlixFluent never rewrites them with AI, it only strips speaker markers. When the platform has no track in your language, FlixFluent's backend translates the original-language subtitles with a large language model and streams the result in — see the fallback section below. The overlay replaces the platform's own subtitle display while active, so the two never overlap, and it stays interactive: hover any word for an in-context translation, click for a deeper breakdown. ## Dual subtitles for Netflix On Netflix, FlixFluent pairs any two of the subtitle tracks Netflix serves for a title — and fills the translation side itself when your language is missing. The one hard requirement is a subtitle track in the language you are learning: if a title carries no target-language track at all, there is nothing to overlay. Your own language is optional — when Netflix lacks it, the translation line is AI-generated from the original subtitles. Netflix subtitle tracks are professionally authored, so quality on the target side is consistently high. The full setup walkthrough, customisation options, and troubleshooting live in the Netflix guide linked below. ## Dual subtitles for YouTube YouTube's caption ecosystem mixes human-uploaded tracks, auto-generated (ASR) captions, and auto-translated tracks — FlixFluent tells you which one you are actually reading. Auto-generated and auto-translated tracks are detected from the player's own track metadata. When the track you are learning from is one of them, FlixFluent shows a brief on-screen warning and keeps a persistent warning icon on the subtitle overlay, with a tooltip explaining that auto-generated quality is lower and may not be ideal for learning. Auto-generated captions arrive as rolling word fragments; FlixFluent regroups them into full sentence cues before displaying them, so lines read naturally and sentence deconstruction has real sentences to work with. Videos with no captions at all render nothing — FlixFluent does not fabricate captions. Setup details and channel recommendations live in the YouTube guide linked below. ## No subtitles in your language? FlixFluent translates them When the platform has no subtitle track in your language, the overlay shows "No native subtitles — translating instead." and an AI translation of the original dialogue takes over the translation line. Subtitles are translated in batches, and the batch you are currently watching is translated first so the line on screen fills in fastest; the rest of the episode streams in behind it. If several people request the same episode at once, the work is shared rather than repeated. The translation style is deliberately literal rather than idiomatic: register and word order are preserved where possible, cultural references are not swapped for local equivalents, and cues are never merged or reordered. For a learner, a translation that mirrors the structure of the original sentence is more useful than a smooth paraphrase. Completed translations are cached and re-checked on every load — batches with missing or empty lines are reprocessed, and every cached entry carries an integrity hash so corrupted data heals itself instead of rendering. ## More than two subtitle lines: translation, deconstruction, audio The dual subtitle overlay is the surface; everything underneath it is interactive. Hovering a word shows a translation generated for that word in that exact sentence — FlixFluent does not use dictionary lookups. The same word in a different line gets its own translation, because meaning depends on context, and the surrounding lines are passed along as extra context. Clicking goes deeper: word explanations break the surface form down to its root and morphemes, and sentence deconstruction produces a structured breakdown — translation, chunk-by-chunk analysis, combined meaning, and notes. Every chunk in a breakdown is itself clickable, so you can keep digging into any part you don't understand and step back out with the back arrow (the digger). Every word and line can also be spoken aloud. Pronunciation audio is generated for the exact sentence the word appears in — so Chinese 还 is read hái or huán as the sentence requires, and Japanese 辛い comes out as karai or tsurai — then cached, so replays are instant. Looked-up words feed the vocabulary trainer for spaced review; see /vocabulary-trainer/. ## Supported languages, platforms, and playback 28 learnable languages in any pairing, one extension for Netflix and YouTube, and playback controls built for study. Any of the 28 supported languages can be the language you learn or the language you read translations in — including English, Korean, Japanese, Chinese (Simplified and Traditional), Spanish, French, German, Vietnamese, Arabic, and more. The extension interface itself is available in 24 languages. Non-Latin scripts get per-language romanization: Revised Romanization for Korean, pinyin with tone marks for Chinese, kana-aware romaji for Japanese — with kanji readings resolved per line, so multi-reading characters romanize correctly for that sentence. Playback is study-friendly: auto-pause at the end of every line, hover-pause while your mouse is over the subtitles, speed from 0.5× to 1.5×, keyboard navigation between lines (A/D), instant line replay (S), and one-key sentence deconstruction (F). ### Where each subtitle line comes from | Situation | Translation line source | What you see | | --- | --- | --- | | Platform has a subtitle track in your language | The platform's own track, time-matched to the target line | Clean dual subtitles | | No track in your language | AI translation of the original-language subtitles | Dual subtitles plus a "No native subtitles — translating instead." notice | | No track in the language you are learning (Netflix) | — | No overlay — a target-language track must exist | | YouTube target track is auto-generated (ASR) | Your-language track or AI translation | Dual subtitles plus an auto-generated warning banner and a persistent warning icon | | YouTube target track is auto-translated | Your-language track or AI translation | Dual subtitles plus an auto-translated warning; used only when the target language has no caption track | | Caption track mislabeled (text in the wrong script) | — | FlixFluent switches to the auto-generated track or refuses to display the mislabeled one | ## FAQ ### Are dual subtitles the same as bilingual subtitles? Yes — dual subtitles, bilingual subtitles, and double subtitles all describe the same thing: two subtitle languages displayed at once. FlixFluent shows the language you are learning above a line in your own language. ### Can I get dual subtitles on Netflix or YouTube without an extension? No — both players display a single subtitle track at a time. An extension that renders a second line is the only practical way to see two languages at once on the web players. ### What happens if Netflix has no subtitles in my language? FlixFluent AI-translates the original-language subtitles for the translation line and shows a "No native subtitles — translating instead." notice. You can keep watching; the scene you are watching is translated first and the rest streams in. ### What if the language I am learning has no subtitle track? Then there is nothing to overlay — FlixFluent needs a subtitle track in the target language. On Netflix, pick another title or check back later (tracks are sometimes added after release); on YouTube, pick a captioned video. ### Are the AI translations literal or idiomatic? Deliberately literal. The translation preserves the original word order and register where possible and does not swap cultural references for local equivalents, because a structure-mirroring translation is more useful for learning than a smooth paraphrase. ### How do I know if a YouTube caption track is auto-generated? FlixFluent tells you: a warning appears when the track loads, and a persistent warning icon stays on the subtitle overlay with a tooltip explaining that auto-generated quality is lower. Auto-translated tracks are flagged the same way. ### Do dual subtitles work on mobile? The extension runs on desktop Chromium browsers (Chrome, Edge, Brave, Opera) — browser extensions cannot run inside the Netflix or YouTube mobile apps. The vocabulary trainer, proficiency tests, and My Dictionary are a mobile-friendly web app at app.flixfluent.com. ### How much does FlixFluent cost? $17 / month, $159 / year, or $399 one-time for lifetime access, all with a 7-day free trial and a 30-day money-back guarantee. Dual subtitles, translation, deconstruction, pronunciation audio, and the vocabulary trainer are all included. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # The FlixFluent vocabulary trainer > The FlixFluent vocabulary trainer is a spaced-repetition flashcard system in the FlixFluent web app (app.flixfluent.com), included in the standard subscription. Cards are created automatically from the words you look up while watching Netflix and YouTube — each card keeps its original sentence and episode — and can also be imported from Anki decks (.apkg) or CSV. Scheduling uses FSRS, the open-source algorithm that outperforms the classic SM-2 heuristic in large public benchmarks, tuned to a 90% retention target. On top of FSRS, the trainer adds retention-adaptive daily pacing, same-sentence burying, receptive-to-productive graduation, and optional typed recall with near-miss tolerance. FlixFluent has not run peer-reviewed studies on its own product; the design follows the published memory research cited below. Canonical: https://flixfluent.com/en/vocabulary-trainer/ ## Key facts - Included in the standard $17 / month FlixFluent subscription (web app) - FSRS scheduling, 90% retention target - Cards auto-created from words you look up while watching, with source sentence and episode reference - Anki .apkg and CSV import; CSV export - Adaptive pacing: 5–20 new cards/day based on your trailing 14-day retention - Receptive → productive graduation; optional typed recall (off by default) with near-miss tolerance - No self-run peer-reviewed studies; design follows published spacing / retrieval-practice research ## What is the vocabulary trainer? A flashcard review system that converts your real watching activity into a daily review queue, so the words you actually met in shows are the words you retain. It lives in the FlixFluent web app at app.flixfluent.com and is included in the normal $17 / month subscription — there is no separate purchase. The core loop: watch with the extension, click words you don't know, and the trainer collects those words into a review pool. Each day it deals you a queue of due reviews plus a measured number of new cards, scheduled by FSRS. The trainer is deliberately biased toward being sustainable. Daily new-card volume adapts to your actual measured retention, cards from the same sentence never appear on the same day, and a mistyped answer that is one letter off is treated as a near miss rather than a failure. The goal is real retention without the review-debt spiral that makes people abandon flashcard systems. ## Where do cards come from? Two sources: automatically from the words you look up while watching, and manually via Anki or CSV import. Organic capture: when you click a word on Netflix or YouTube, the trainer records the dictionary form, the exact inflected form you saw, the full subtitle sentence it appeared in, and which episode it came from. The stored sentence becomes the card's context — productive cards test you with a cloze (fill-in-the-blank) built from the very sentence you originally watched, and the episode reference means a card can deep-link back to that moment in the show. Capture happens on the dual-subtitle overlay itself — the same words you hover, deconstruct, or dig into while watching (see /dual-subtitles/) — and the trainer's in-card explanation and deconstruction popups are the same digger components the extension uses. Import: the trainer accepts Anki deck files (.apkg) and CSV uploads, so an existing collection can move in without retyping. Your collection can be exported back out as CSV at any time (there is no .apkg export). Imported cards carry their own gloss and are flagged as imported so they can be managed separately. ## How is scheduling done? (FSRS) Scheduling uses FSRS — Free Spaced Repetition Scheduler — with the request-retention target fixed at 0.90. FSRS models each card with three quantities: difficulty, stability (how long the memory lasts), and retrievability (the probability you can recall it right now). After every review it updates the card's stability and difficulty and schedules the next review for the moment predicted retrievability falls to the retention target — for FlixFluent, 90%. This is the same algorithm family that modern Anki ships as its recommended scheduler. In the open srs-benchmark maintained by the FSRS authors — 9,999 anonymised Anki collections, roughly 350 million real reviews — FSRS variants predict recall substantially more accurately than the classic SM-2 heuristic that older flashcard systems use; the benchmark's summary page reports the current FSRS release beating SM-2 for over 99% of users on log loss (with the stated caveat that SM-2 was never designed to output probabilities). FlixFluent uses the stock FSRS parameters; we do not currently train per-user weights. The 90% target is a deliberate trade-off: pushing target retention higher makes reviews balloon for small retention gains, and lower targets forget too much. It is fixed rather than user-configurable in the current version. ## What does the trainer add on top of FSRS? FSRS decides when a card comes back. Everything around that — how many new cards you get, what order, what counts as an answer — is FlixFluent's own layer, tuned to keep daily load humane. Two-button grading with automatic Easy: reviews are graded with just Again and Good (swipe or click). If you answer Good within about 3 seconds, the trainer upgrades the grade to Easy automatically — near-instant recognition is treated as fluent knowledge, a heuristic drawn from Anki community practice. This keeps grading friction near zero without collapsing FSRS's rating scale to two levels. Retention-adaptive pacing: the daily new-card budget starts at 10 and moves between 5 and 20 based on your trailing 14-day retention — below 85% retention it drops to 5, at 92%+ with a light due load it rises to 15, at 95%+ with a very light load it rises to 20, and it never exceeds 20. The budget is further trimmed or expanded (×0.7–1.1) by how hard the upcoming words look: their corpus frequency rank and the trailing average FSRS difficulty of your due cards. If you want more, a "show me 5 more" button adds new cards in explicit increments of five. Same-sentence burying: grading a card buries every other card that shares its source sentence until the next day, so one sentence never yields three near-duplicate reviews in a session. New cards are interleaved into reviews at roughly 1 new per 3 due; when a backlog has built up, due reviews are front-loaded first. Days roll over at your local midnight, not UTC. Small quality-of-life mechanics: the last review can be undone, any card can be ignored permanently (the replacement for classic leech auto-suspension), and per-card statistics feed a visible "mastered" count (cards whose memory stability exceeds three weeks) plus a 30-day retention figure. ## Receptive and productive recall Cards start receptive (see the word, recall the meaning) and graduate to productive (see the meaning, produce the word) once the receptive direction is established. Recognising a word and being able to produce it are different skills, and productive recall is the harder, higher-value one. In the default "auto" mode, a card is promoted to productive practice once it is genuinely established — at minimum three successful reviews in review state, plus stability thresholds (roughly one to two weeks of demonstrated memory, sooner for cards you find easy and have never lapsed on). Productive cards present the card's original sentence with the word blanked out. The direction is user-configurable: you can pin the trainer to receptive-only, productive-only, or leave it on auto-graduation. ## Typed recall, near misses, and multiple choice Productive cards can require actually typing the answer — with an on-screen keyboard for non-Latin scripts and a forgiving grader that distinguishes typos from wrong answers. Typing is the strictest form of retrieval practice, and the trainer supports it natively: an optional "force me to type" mode (off by default — you can enable it in settings) requires a typed answer on productive cards instead of a reveal-and-swipe. For scripts your physical keyboard may not cover, the trainer ships on-screen keyboards, including Korean (with jamo composition), Arabic, Hebrew, and Hindi. The grader normalises the answer (case, accents, and for Korean the dictionary-form ending) and then allows a small edit distance — one character for Korean / Chinese / Japanese scripts, two for others. An answer within that distance is classified as a near miss: you see the correction and continue, rather than having the card fail outright. Genuine failures still grade Again. There is also a multiple-choice mode: the correct answer plus three distractors drawn from your own card pool and length-matched so the right answer is not guessable by shape. Audio is covered too — cards speak the word with pronunciation audio generated in the context of the card's original sentence, so multi-reading words in Japanese or Chinese are pronounced the way that sentence requires. Each clip is generated once and then cached, with an auto-play option and browser-voice fallback. All of this is user-configurable in the trainer settings: typing on or off, recall direction, sound auto-play. ## What research is the design based on? The trainer's mechanics map onto three well-replicated findings in the memory literature: the spacing effect, the testing effect, and incidental vocabulary learning from video. Spacing: distributing reviews over increasing intervals produces more durable memory than massed repetition — the meta-analytic evidence covers hundreds of experiments (Cepeda, Pashler, Vul, Wixted & Rohrer, 2006, Psychological Bulletin). Spaced repetition scheduling is the entire point of FSRS, and its accuracy at predicting recall is measurable on public data (see the srs-benchmark below). Retrieval practice: actively recalling an item strengthens memory more than re-reading it, especially at a delay (Roediger & Karpicke, 2006, Psychological Science). This is why the trainer is recall-first — reveal-then-grade at minimum, typed production at the strictest setting — rather than a re-exposure tool. Learning vocabulary from television: incidental vocabulary acquisition through watching L2 television is real and measurable, and is strongly affected by frequency of encounter and prior knowledge (Peters & Webb, 2018, Studies in Second Language Acquisition). The trainer closes the loop the research points at: the words you met on screen get the repeated, spaced encounters that watching alone cannot guarantee. Honest limits: FlixFluent has not run its own peer-reviewed efficacy studies, and we make no numeric "learn N× faster" claims. What we can state factually is what the system does: FSRS scheduling at a 90% retention target, recall-based review, and pacing that adapts to your measured retention — with the supporting literature linked below. ### Vocabulary trainer — at a glance | Attribute | Value | | --- | --- | | Where | FlixFluent web app (app.flixfluent.com), included in the subscription | | Scheduler | FSRS, stock parameters | | Retention target | 0.90 (fixed) | | Card sources | Words looked up while watching Netflix / YouTube; Anki .apkg import; CSV import | | Card context | Original subtitle sentence + episode reference | | Export | CSV | | New cards per day | Adaptive 5–20 (base 10), driven by trailing 14-day retention and upcoming-card difficulty | | Grading | Again / Good, with Good auto-promoted to Easy under ~3 s | | Recall directions | Receptive (L2→L1), productive (L1→L2 cloze), or auto-graduation | | Typed input | Optional (off by default); on-screen Korean / Arabic / Hebrew / Hindi keyboards; near-miss tolerance of 1–2 edits | | Other modes | Multiple choice with length-matched distractors; in-context TTS audio (generated per card sentence, then cached) with auto-play option | | Daily reset | User-local midnight | ## FAQ ### Is the vocabulary trainer included in the FlixFluent subscription? Yes. It is part of the standard $17 / month subscription, in the web app at app.flixfluent.com. There is no separate purchase. ### Which algorithm does the trainer use? FSRS, with stock parameters and a fixed 90% retention target. ### Do I have to type answers? No. Typed recall ("force me to type") is optional and off by default. When enabled, near misses within one or two characters are corrected rather than failed. ### Can I import my Anki deck? Yes — .apkg files import directly, as do CSV files. Export is CSV only; there is no .apkg export. ### How many new cards do I get per day? Base 10, adapting between 5 and 20 from your trailing 14-day retention and how difficult the upcoming words look. A "show me 5 more" button adds more on demand. ### Why only Again and Good buttons? Two buttons keep grading fast and consistent. A Good answered within about 3 seconds is automatically upgraded to Easy, so FSRS still receives more than two rating levels. ### Does the trainer work if I don't watch Netflix or YouTube? Yes, with imported cards (Anki / CSV). But its distinguishing value is turning your own watch-time lookups into cards with their original sentence and episode context. ### Can I review on my phone? Yes — the trainer is a responsive, touch-first web app that works in any mobile browser, with swipe grading and on-screen keyboards for non-Latin scripts, and it can send push reminders when reviews are due even with the tab closed. There is no native mobile app. ### What happens to cards I keep failing? Nothing is silently suspended. You can ignore any card permanently, undo your last review, and same-sentence siblings are buried until the next day to avoid pile-ups. ### Is there proof this makes you learn faster? We make no speed claims. Spacing and retrieval practice are among the best-replicated effects in memory research (sources below), FSRS's scheduling accuracy is measured on ~350 million public reviews, and the trainer implements those mechanisms — but FlixFluent has not run peer-reviewed studies on its own product. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [Cepeda, Pashler, Vul, Wixted & Rohrer (2006) — Distributed practice in verbal recall tasks, Psychological Bulletin 132(3)](https://augmentingcognition.com/assets/Cepeda2006.pdf) - [Roediger & Karpicke (2006) — Test-enhanced learning: taking memory tests improves long-term retention, Psychological Science 17(3)](https://journals.sagepub.com/doi/10.1111/j.1467-9280.2006.01693.x) - [Peters & Webb (2018) — Incidental vocabulary acquisition through viewing L2 television, Studies in Second Language Acquisition 40(3)](https://www.cambridge.org/core/journals/studies-in-second-language-acquisition/article/abs/incidental-vocabulary-acquisition-through-viewing-l2-television-and-factors-that-affect-learning/0E45A630F37C48A5BDB6CC3F725ADDC9) - [srs-benchmark — open benchmark of spaced-repetition algorithms (9,999 collections, ~350M reviews)](https://github.com/open-spaced-repetition/srs-benchmark) - [Benchmark of spaced repetition algorithms — summary page (FSRS vs SM-2)](https://expertium.github.io/Benchmark.html) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # FlixFluent vs Language Reactor > FlixFluent and Language Reactor are both Chrome extensions that turn Netflix and YouTube into language-learning tools, but they target different users. FlixFluent costs $17 per month and focuses on click-to-deconstruct word and sentence analysis with dictionary form, particle, and grammar role information; Language Reactor offers a free dual-subtitle mode and a paid tier centred on phrase saving and machine translation. This page compares pricing, features, supported platforms, and learner type. Canonical: https://flixfluent.com/en/compare/language-reactor/ ## Key facts - FlixFluent: $17 / month, $159 / year, or $399 lifetime — 7-day free trial, 30-day money-back guarantee - Language Reactor: free tier with optional paid upgrade - Both work on Netflix and YouTube via Chrome extension - FlixFluent adds click-to-deconstruct word and sentence analysis - FlixFluent ships native romanization for Korean, Japanese, Chinese - FlixFluent includes an FSRS vocabulary trainer (web app); Language Reactor centres on phrase saving - Chrome Web Store ID: kafnapimhampiiljjmaoidhefmagfapg ## How is FlixFluent different from Language Reactor? FlixFluent is built around interactive grammatical analysis: hover any subtitle to translate, click any word to deconstruct it into dictionary form, stem, particle, and grammar role, and pull a full structural breakdown of the whole sentence. Language Reactor is built around dual subtitles and a phrase library backed by Google Translate. In practical terms, FlixFluent answers the question "why does this sentence mean what it means?" while Language Reactor answers "what does this sentence mean, and can I save it for later?" Both have value. The difference shows up most clearly with morphologically rich languages — Korean, Japanese, Turkish, Finnish — where understanding particles or conjugation matters as much as understanding vocabulary. FlixFluent also carries the words you look up beyond the watching session: its web-app vocabulary trainer turns them into FSRS-scheduled flashcards with the original sentence and episode as context. FlixFluent also ships native romanization for non-Latin scripts (Revised Romanisation for Korean, rōmaji for Japanese, pinyin for Chinese), so a beginner can read along without first learning Hangul or kana. Language Reactor exposes phonetic transcriptions but does not provide structural deconstruction. FlixFluent additionally generates pronunciation audio in the context of the exact sentence, which matters for multi-reading words in Japanese and Chinese. ## How does the pricing compare? Language Reactor has a generous free tier and a low-priced paid upgrade. FlixFluent is $17 per month (with $159 / year and $399 lifetime options), with a 7-day free trial and 30-day money-back guarantee — no free tier. FlixFluent's pricing reflects that every word click hits a backend that performs grammatical analysis with a language model, not just a translation lookup. If you only want dual subtitles and saved phrases, Language Reactor's free tier is hard to beat. If you want the deconstruction features and the auto-pause / line-navigation flow built around them, FlixFluent is a different product at a different price point. ## Which one is better for Korean learners? For Korean specifically, FlixFluent has an edge. Korean depends on particles (은/는, 이/가, 을/를) and verb endings that change meaning sharply; FlixFluent labels each particle, marks the dictionary form of the verb, and identifies the grammar role. Language Reactor will translate the sentence and give you a token-level gloss, but it does not separate the particle from the noun stem or explain why a verb ending implies politeness or causation. For K-drama learners chasing real comprehension, the deconstruction layer is the reason to pay. ## Which streaming platforms does each support? Both extensions work on Netflix and YouTube. Neither claims first-class support for Disney+, HBO Max, or Prime Video at the time of writing. FlixFluent injects directly into the Netflix and YouTube subtitle DOM via content scripts. The same extension covers both sites; you do not install two products. ## Is FlixFluent or Language Reactor better for absolute beginners? A complete beginner with no vocabulary will struggle on either tool, but FlixFluent's deconstruction view is friendlier for low-intermediate learners who can recognise some words but cannot parse sentences yet. Language Reactor is friendlier for high-beginners who mostly need dual subtitles and a way to save phrases. The right tool depends on whether you want to read along (Language Reactor) or pull sentences apart (FlixFluent). ### FlixFluent vs Language Reactor — feature matrix | Product | Price | Platforms | Dual subtitles | Hover translation | Word deconstruction | Sentence deconstruction | Auto-pause | Slow playback | Romanization | Vocabulary review | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | FlixFluent | $17 / month (7-day free trial, 30-day money-back) | Netflix, YouTube | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes — FSRS trainer (web app) | | Language Reactor | Free tier; paid ~$5/mo | Netflix, YouTube | Yes | Yes | No | No | Yes | Yes | No | Saved phrases + export (paid) | ## FAQ ### Can I use FlixFluent and Language Reactor at the same time? Technically yes — both are Chrome extensions and they don't conflict at install time. In practice, only one extension renders subtitles at a time, so you would toggle whichever you wanted active for that session. ### Does FlixFluent have a free tier like Language Reactor does? No. FlixFluent offers a 7-day free trial and a 30-day money-back guarantee, but there is no permanent free tier. ### Which one has better translation accuracy? FlixFluent's base subtitle line is the platform's own human-written track whenever your language is available, with in-context AI translation as the fallback — and its word translations are generated per word and exact sentence rather than looked up. Language Reactor's phrase library is backed by Google Translate. Beyond translation, FlixFluent's edge is at the morpheme level — labelling particles and identifying dictionary forms. ### Does Language Reactor work on Disney+ or HBO Max? Language Reactor's primary supported platforms are Netflix and YouTube. Other platforms vary in support and may break with site updates. FlixFluent also focuses on Netflix and YouTube only. ### I already paid for Language Reactor. Should I switch? If you mostly use dual subtitles and saved phrases, you don't need to switch. If you have hit the wall where you can read along but cannot understand why a sentence is structured the way it is, the deconstruction layer in FlixFluent is the reason to try the trial. ### Does FlixFluent have vocabulary review, and does it work with Anki? Yes — the FlixFluent web app includes a vocabulary trainer that builds FSRS-scheduled flashcards from the words you look up while watching. It imports Anki decks (.apkg) and CSV, and exports CSV (no .apkg export). Language Reactor offers some export functionality on its paid plan. See /vocabulary-trainer/. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Language Reactor official site](https://www.languagereactor.com) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # FlixFluent vs Lingopie > FlixFluent and Lingopie both use TV and film for language acquisition, but they sit at opposite ends of the stack. FlixFluent is a Chrome extension layered on Netflix and YouTube, so you keep your existing subscriptions and content; Lingopie is a standalone streaming service with a curated library of foreign-language shows. This page compares price, content, interactive features, and which model suits which learner. Canonical: https://flixfluent.com/en/compare/lingopie/ ## Key facts - FlixFluent: $17 / month, layered on Netflix and YouTube - Lingopie: standalone streaming service with own catalogue - FlixFluent has click-to-deconstruct word and sentence analysis; Lingopie does not - Both have built-in review: Lingopie flashcards, FlixFluent an FSRS vocabulary trainer - For YouTube-first learners, FlixFluent is the only option - Chrome Web Store ID: kafnapimhampiiljjmaoidhefmagfapg ## What is the core difference between FlixFluent and Lingopie? FlixFluent is an overlay on the streaming services you already use; Lingopie is a separate streaming service with its own licensed catalogue. The first decision is whether you want to learn from your own Netflix queue or from a smaller, language-curated catalogue. If you already watch K-dramas on Netflix or French YouTube channels every week, FlixFluent meets you where you are: install once, log in, and any compatible video gets dual subtitles, hover translation, and click-to-deconstruct analysis. If you do not yet have a streaming habit and want a single app that hands you graded foreign-language content, Lingopie is the more curated experience. ## Which features differ the most? FlixFluent ships click-to-deconstruct word and sentence analysis, including dictionary form, stem, particle, and grammar role labelling — Lingopie does not. Both ship vocabulary review: Lingopie an integrated flashcard loop, FlixFluent an FSRS-based vocabulary trainer in its web app. Both products give you dual subtitles, click-to-translate, and the ability to slow playback. FlixFluent additionally provides line navigation (jump to previous or next subtitle) and auto-pause at the end of each line, both useful for shadowing. On review, FlixFluent's trainer builds flashcards from the words you look up while watching (keeping the original sentence and episode as context), schedules them with FSRS at a 90% retention target, supports typed recall, and imports Anki / CSV decks — see /vocabulary-trainer/ for the full mechanics. Lingopie's review loop is simpler and lives inside its own app. ## How does pricing compare? Lingopie advertised pricing ranges from roughly $12/month (annual plan) up to about $30/month for a monthly plan. FlixFluent is $17 / month, $159 / year, or $399 one-time lifetime, with a 7-day free trial and 30-day money-back guarantee. On annual plans the two are close: Lingopie's annual works out around $12 / month and FlixFluent's $159 / year around $13 / month, and FlixFluent also offers a $399 one-time lifetime plan. Monthly billing remains available if you want to pause when you stop watching shows. Neither is a giveaway — pick on fit, not price. ## Which has better content for the language I want? For mainstream target languages with strong Netflix catalogues — Korean, Japanese, Spanish, French, German — FlixFluent gives you access to a much larger library because it uses Netflix itself. Lingopie's catalogue is curated, which is a feature for beginners (less choice paralysis) and a limitation for advanced learners (you may have already seen everything in your level). For YouTube-first learners — comprehensible-input channels, news, vlogs — Lingopie does not compete; FlixFluent works on YouTube directly. ## Is Lingopie or FlixFluent better for beginners? Lingopie is friendlier for absolute beginners because its catalogue is graded and its UI is simpler. FlixFluent is friendlier for high-beginner and intermediate learners who already have a streaming habit and want to keep it. A complete beginner pointed at Squid Game with FlixFluent will be overwhelmed; the same beginner pointed at a graded Lingopie show will not. Once you can follow the rough plot of a real Netflix show, FlixFluent's deconstruction layer becomes valuable in a way Lingopie's tooling does not match. ### FlixFluent vs Lingopie — feature matrix | Product | Price | Platforms | Dual subtitles | Hover translation | Word deconstruction | Sentence deconstruction | Auto-pause | Slow playback | Romanization | Vocabulary review | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | FlixFluent | $17 / month (7-day free trial, 30-day money-back) | Netflix, YouTube | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes — FSRS trainer (web app) | | Lingopie | ~$12–$30 / month | Lingopie web + mobile | Yes | Yes | No | No | Yes | Yes | No | Yes — flashcards | ## FAQ ### Do I need a Netflix subscription to use FlixFluent? You need access to a streaming source that FlixFluent supports — Netflix or YouTube. If you only want to watch on Lingopie's app, FlixFluent does not apply. ### How do the review / flashcard systems compare? Lingopie has an in-app flashcard loop built from words you click in its catalogue. FlixFluent's vocabulary trainer (in the web app) schedules cards with FSRS at a 90% retention target, keeps each word's original sentence and episode as context, supports typed recall, and imports Anki / CSV decks. See /vocabulary-trainer/. ### Can I use both? You can subscribe to both, but FlixFluent does not run inside Lingopie's app — it injects into Netflix and YouTube only. ### Which one is cheaper long-term? On a yearly commitment they are close — Lingopie around $12 / month, FlixFluent's $159 / year about $13 / month. FlixFluent's $399 one-time lifetime plan wins for multi-year learners, and month-to-month stays the flexible option. ### Does FlixFluent work on the Netflix mobile app? No. FlixFluent is a Chrome / Chromium-based browser extension, so it requires the Netflix or YouTube web player. ### Which has more languages? FlixFluent's UI is translated into 24 interface languages, and 28 languages are learnable in any pairing — anything Netflix or YouTube has target-language subtitles for, with AI translation covering the base line when your language is missing. Lingopie's catalogue covers fewer languages but with curated learner-focused content. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Lingopie official site](https://lingopie.com) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # FlixFluent vs FluentU > FlixFluent and FluentU both use real-world video for language learning, but they differ in delivery and depth. FlixFluent is a Chrome extension that overlays interactive dual subtitles, hover translation, and click-to-deconstruct word and sentence analysis on the Netflix and YouTube you already watch. FluentU is a standalone web and mobile app built around short curated clips with embedded captions, flashcards, and quizzes. Canonical: https://flixfluent.com/en/compare/fluentu/ ## Key facts - FlixFluent: $17 / month, overlay on Netflix and YouTube - FluentU: standalone curated catalogue with quizzes and SRS - FlixFluent has full click-to-deconstruct word and sentence analysis - Both have SRS review — FluentU quizzes on its clips, FlixFluent an FSRS trainer fed by your own watching - Different niches — beginner curation vs. real-content depth ## What is the difference between FlixFluent and FluentU? FlixFluent runs inside Netflix and YouTube; FluentU runs inside its own app. FlixFluent emphasises grammatical deconstruction; FluentU emphasises curated short videos paired with vocabulary review. The implication is that FluentU is a complete learning environment — content, captions, flashcards, quizzes — while FlixFluent is a tool you bolt onto whatever you already watch. The trade-off is curation versus reach: FluentU's clips are levelled and short; FlixFluent's "library" is whatever Netflix and YouTube have, which is enormous but unstructured. ## Which features overlap and which differ? Both let you click words while watching and slow playback, and both now have spaced-repetition review. FluentU shows definitions for clicked words; FlixFluent generates an in-context AI translation and explanation tied to the exact sentence — no dictionary lookups. FlixFluent adds click-to-deconstruct sentence analysis, romanization for non-Latin scripts, and auto-pause at the end of each subtitle line. FluentU adds curated quizzes tied to its clips. If you measure tools by how much help they give per click, FlixFluent goes deeper inside a single sentence (parts of speech, particles, dictionary form) and FluentU goes wider around a single clip (review questions, flashcards, follow-up content). On review specifically: FluentU's quizzes are attached to its curated clips, while FlixFluent's vocabulary trainer (web app) builds FSRS-scheduled flashcards from whatever you actually watched on Netflix or YouTube, keeps the source sentence and episode as context, and imports Anki / CSV decks — details at /vocabulary-trainer/. ## How does content delivery differ? FluentU's catalogue is curated short clips — usually under five minutes — graded by level. FlixFluent does not curate; it works on whatever you choose to watch on Netflix or YouTube. For low-beginner learners who do not yet have the comprehension to enjoy real shows, curated clips are the better starting point. For learners who already enjoy K-dramas, anime, telenovelas, or French YouTube essays, the chance to make that watch time productive is what FlixFluent unlocks. ## How does pricing compare? FluentU is typically priced around $20–$30 per month (with discounts on annual plans). FlixFluent is $17 per month with a 7-day free trial and 30-day money-back guarantee. On a pure monthly basis FlixFluent is cheaper than FluentU, but the products are not interchangeable; price is rarely the deciding factor. ## Who is FlixFluent best for vs FluentU? FlixFluent is best for learners who already watch foreign-language Netflix or YouTube and want to make that habit productive without changing apps. FluentU is best for learners who want a single self-contained environment with quizzes and review baked in. A common path is FluentU at the early stages, then FlixFluent once you can follow real native-speed content. They are not in direct competition for the same week of your study time. ### FlixFluent vs FluentU — feature matrix | Product | Price | Platforms | Dual subtitles | Hover translation | Word deconstruction | Sentence deconstruction | Auto-pause | Slow playback | Romanization | Vocabulary review | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | FlixFluent | $17 / month (7-day free trial, 30-day money-back) | Netflix, YouTube | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes — FSRS trainer (web app) | | FluentU | ~$20–$30 / month | FluentU web + mobile | Yes | Yes | No | No | No | Yes | Yes | Yes — quizzes + SRS | ## FAQ ### Is FluentU more beginner-friendly than FlixFluent? Yes for absolute beginners. FluentU's curated clips are levelled; FlixFluent's "level" is whatever you choose to watch on Netflix. ### Does FlixFluent have a built-in flashcard or SRS system? Yes. The FlixFluent web app includes a vocabulary trainer that turns the words you look up while watching into FSRS-scheduled flashcards (90% retention target), with typed recall, receptive → productive graduation, and Anki / CSV import. See /vocabulary-trainer/. ### Can I use FluentU's clips inside FlixFluent? No. FlixFluent works on Netflix and YouTube, not inside FluentU's player. ### Which one is faster to get started with? FlixFluent — install the extension, sign in, open Netflix or YouTube. FluentU requires choosing a target language and a level, then working through a guided onboarding. ### Do they support the same languages? They overlap on the major target languages (Spanish, French, German, Korean, Japanese, Chinese). FluentU has formally supported "courses" only in some languages; FlixFluent works on subtitles regardless of language. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [FluentU official site](https://www.fluentu.com) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # FlixFluent vs Duolingo for streaming-based learning > FlixFluent and Duolingo solve different parts of the language-learning problem. FlixFluent is a Chrome extension that turns Netflix and YouTube into structured input, with dual subtitles, hover translation, and click-to-deconstruct word and sentence analysis. Duolingo is a gamified app for drilling vocabulary and grammar through short exercises. Most serious learners use both: Duolingo for cold drills, FlixFluent for comprehensible input from real content. Canonical: https://flixfluent.com/en/compare/duolingo/ ## Key facts - FlixFluent: real-content overlay; not a structured curriculum - Duolingo: structured curriculum; not a content overlay - They complement each other rather than compete - FlixFluent is best added at upper-beginner / lower-intermediate or above - Both have free trial mechanics — Duolingo has a free tier, FlixFluent a 7-day trial ## Are FlixFluent and Duolingo even comparable? Not directly. Duolingo gives you exercises; FlixFluent gives you tools to consume real content. Most learners benefit from both — drills build foundations, video builds comprehension and listening. When learners ask "FlixFluent vs Duolingo" they usually mean: I have used Duolingo for months and I still cannot understand a Netflix show — what now? FlixFluent is the answer to that specific gap. It is not a replacement for the early-stage drill loop Duolingo handles well. ## What is each one's strength? Duolingo's strength is sheer consistency: short daily lessons, immediate feedback, and habit formation. FlixFluent's strength is making real-world video material parseable — dual subtitles, hover translation, click-to-deconstruct grammar. Duolingo trains recognition of words and patterns in isolation. FlixFluent trains recognition of those same words and patterns inside the messy authentic speech of Netflix and YouTube — colloquialisms, contractions, slang, regional accents. ## How does pricing compare? Duolingo has a free tier with ads, and Super Duolingo runs roughly $7–$13 per month depending on plan. FlixFluent is $17 per month with a 7-day free trial and 30-day money-back guarantee. They are not direct alternatives at the price level — running both is realistic for serious learners. Duolingo for the morning drill, FlixFluent for the evening show. ## At what level should I add FlixFluent on top of Duolingo? Most learners get value from FlixFluent once they can recognise common words and verb forms in isolation — roughly upper-beginner / lower-intermediate. Below that level, real native-speed content is too dense; you will spend more time hovering than watching. Once you can follow rough plot at half speed with subtitles, the deconstruction layer turns ambiguous moments into learnable ones instead of frustrating ones. ## How do you combine FlixFluent and Duolingo effectively? Use Duolingo for short structured practice (10–20 minutes a day) and FlixFluent for longer immersive sessions on content you actually enjoy. A common pattern: Duolingo daily for vocabulary and grammar reinforcement, FlixFluent for two or three episodes a week with dual subtitles, hover translation on unknown words, and full sentence deconstruction on the two or three sentences per episode that genuinely confuse you. The words you look up feed FlixFluent's own FSRS vocabulary trainer in the web app, so the vocabulary you meet in shows gets its own spaced review loop — from your content rather than a fixed course (see /vocabulary-trainer/). And instead of a streak, progress is measurable: the web app has CEFR-mapped proficiency tests in five languages (English, Korean, German, French, Spanish) with per-skill breakdowns and attempt history. ### FlixFluent vs Duolingo — feature matrix | Product | Price | Platforms | Dual subtitles | Hover translation | Word deconstruction | Sentence deconstruction | Auto-pause | Slow playback | Romanization | Vocabulary review | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | FlixFluent | $17 / month (7-day free trial, 30-day money-back) | Netflix, YouTube | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes — FSRS trainer (web app) | | Duolingo | Free with ads / Super ~$7–$13/mo | Web + mobile (no streaming integration) | No | No | No | No | No | No | No | Own lesson drills | ## FAQ ### Should I cancel Duolingo if I subscribe to FlixFluent? No. They cover different parts of the learning loop. Many learners run both. ### Can FlixFluent teach me a language from scratch? Not on its own. FlixFluent makes content parseable; you still need foundational vocabulary and grammar to benefit from authentic input. ### How do I measure progress without streaks? FlixFluent's web app includes CEFR-mapped proficiency tests for English, Korean, German, French, and Spanish — 30 questions across grammar, vocabulary, and reading, mapped to A1–C2 with a per-category breakdown and attempt history, retakeable after a 1-day cooldown. ### Is Duolingo enough on its own to reach fluency? Most learners hit a ceiling on Duolingo well before fluency because the exercises are not real-world input. Adding video is the standard recommendation. ### Does Duolingo have anything like FlixFluent's deconstruction? No. Duolingo gives you the correct sentence and limited explanation; it does not parse arbitrary native-content sentences. ### Which one will my streak survive? Duolingo, if streaks matter to you. FlixFluent does not gamify usage. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Duolingo official site](https://www.duolingo.com) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # FlixFluent vs Trancy > FlixFluent and Trancy are both Chrome extensions for adding bilingual subtitles to Netflix and YouTube, but they differ on depth. FlixFluent is built around click-to-deconstruct word and sentence analysis with dictionary form, particle, and grammar role labelling, in-context AI translation, and quality flagging of auto-generated captions. Trancy is broader and lighter — bilingual subtitles and a multi-platform footprint that includes Netflix, YouTube, Disney+, and others. Canonical: https://flixfluent.com/en/compare/trancy/ ## Key facts - Trancy: broader (more platforms), lighter (no deconstruction) - FlixFluent: narrower (Netflix + YouTube), deeper (deconstruction + romanization) - Trancy has a free tier; FlixFluent does not - FlixFluent: $17 / month, 7-day trial, 30-day money-back guarantee - Best Korean / Japanese choice depends on whether you want grammar labels ## How is FlixFluent different from Trancy? Trancy is broader — more platforms, lighter features, free tier. FlixFluent is deeper — click-to-deconstruct sentence analysis, particle and grammar role labelling, romanization, focused on Netflix and YouTube only. If your priority is "bilingual subtitles on every video site I visit", Trancy wins on coverage. If your priority is "I want to understand exactly why this Korean sentence works the way it does", FlixFluent wins on depth. ## Which platforms does each support? Trancy supports Netflix, YouTube, Disney+, and additional video platforms. FlixFluent supports Netflix and YouTube only. FlixFluent's narrower platform list is deliberate — the deconstruction backend is tuned to subtitles fetched from those two sources, and platform support is added only when feature parity is possible. ## What does FlixFluent do that Trancy does not? Click-to-deconstruct word analysis (dictionary form, stem, particle, grammar role) and full sentence deconstruction are FlixFluent-specific. Both translate with AI; FlixFluent generates its translations per sentence in context and prefers the platform's own native-language track when one exists. Trancy does not parse sentences morphologically. FlixFluent also ships native romanization for non-Latin scripts (Korean, Japanese, Chinese, others). Trancy provides translation but not the grammatical scaffolding that helps a learner internalise patterns. FlixFluent additionally flags auto-generated (ASR) and auto-translated YouTube tracks with a visible warning, and generates pronunciation audio in the context of the exact sentence. ## How does pricing compare? Trancy has a free tier and a paid Pro plan in the $5–$10 / month range. FlixFluent is $17 per month with a 7-day free trial and 30-day money-back guarantee. If you only need bilingual subtitles and translation, Trancy's free tier is enough. The deconstruction features are the reason to pay more. ## Who should choose FlixFluent over Trancy? Learners who care about morphology — particles, conjugation, grammar role — and who watch on Netflix or YouTube. Korean and Japanese learners benefit most. For passive bilingual viewing across many sites, Trancy is the right call. For active learning on Netflix or YouTube where you regularly stop to ask "what is this sentence doing", FlixFluent's deconstruction is the key feature. ### FlixFluent vs Trancy — feature matrix | Product | Price | Platforms | Dual subtitles | Hover translation | Word deconstruction | Sentence deconstruction | Auto-pause | Slow playback | Romanization | Vocabulary review | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | FlixFluent | $17 / month (7-day free trial, 30-day money-back) | Netflix, YouTube | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes — FSRS trainer (web app) | | Trancy | Free / Pro ~$5–$10/mo | Netflix, YouTube, Disney+, others | Yes | Yes | No | No | Yes | Yes | No | Yes — word saving + review | ## FAQ ### Does Trancy work on Disney+ and Prime Video? Trancy supports Disney+ and several other platforms beyond Netflix and YouTube. FlixFluent does not currently support Disney+ or Prime Video. ### Is FlixFluent worth paying for if Trancy is free? Only if you want the deconstruction layer. If bilingual subtitles and translation are enough, Trancy's free tier is fine. ### Can the two extensions run side by side? They can be installed simultaneously, but typically only one renders subtitles at a time on a given video. ### Which has better Korean support? FlixFluent — explicit particle labelling, dictionary-form lookup, grammar role tagging. Trancy translates but does not parse Korean morphologically. ### Do both work on YouTube auto-generated captions? Both support YouTube's caption tracks where available. FlixFluent additionally detects auto-generated (ASR) and auto-translated tracks, shows a visible warning (a banner plus a persistent icon on the overlay), regroups ASR word fragments into full sentences, and refuses mislabeled tracks whose text is not in the labelled language. ### Do both have vocabulary review? Yes. Trancy offers word saving with a review loop and Anki export. FlixFluent's vocabulary trainer (web app) schedules cards with FSRS at a 90% retention target, keeps the original sentence and episode as context, supports typed recall, and imports Anki / CSV decks. See /vocabulary-trainer/. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Trancy official site](https://www.trancy.org) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # Learn Korean with Netflix > FlixFluent is a Chrome extension built for exactly this problem — turning Korean Netflix into structured input. It overlays dual Korean and English subtitles, lets you hover any word for a contextual translation, and click any word for a deconstruction that names the dictionary form, stem, particle, and grammar role. Korean learners benefit more from FlixFluent than learners of most other languages because Korean grammar is morphologically dense in exactly the places hover-translate alone cannot help. Canonical: https://flixfluent.com/en/learn/korean-with-netflix/ ## Key facts - Korean is FSI Category IV (~2,200 hours to professional proficiency) - FlixFluent handles particles and verb conjugation explicitly, not just translation - Native Hangul romanization shipped (Revised Romanisation) - Works on Netflix and YouTube — Korean catalogues on both are deep - Best for high-beginner / lower-intermediate Korean learners and above ## Why is Netflix a good place to learn Korean? Netflix has a deep Korean catalogue with reliable Korean and English subtitle tracks, including K-dramas, variety shows, films, and originals. The combination of native-speed audio and clean subtitles is rare elsewhere. Korean is a category-IV language for English speakers under FSI categorisation, meaning roughly 2,200 hours of guided study to reach professional working proficiency. Comprehensible video input is a force multiplier on those hours because it pairs grammar exposure with prosody, register, and cultural context that textbooks cannot deliver. Practically: pick a show one or two notches below your current ceiling, watch it with FlixFluent's dual subtitles, hover words you don't know, and use full-sentence deconstruction on the two or three sentences per episode that genuinely confuse you. ## How does FlixFluent help with Korean particles? FlixFluent's click-to-deconstruct view names each particle (은/는, 이/가, 을/를, 에, 에서, 으로, 도, 만, …) and shows the role it plays in the sentence — topic, subject, object, location, instrument, and so on. Korean particles do most of the grammatical work that English does with word order. A learner who can translate every individual word but cannot parse particles will misread sentences. The deconstruction view splits the noun stem from the particle visibly, so 학교에서 reads as 학교 (school) + 에서 (location particle), not as one opaque chunk. ## How does FlixFluent handle Korean verb conjugation? Click any verb and FlixFluent returns the dictionary form (-다 form), the stem, and labels for politeness level, tense, and any aspect or modality endings. Korean verb endings stack — -았어요, -았었어요, -아 봤어요, -해 주셨어요 — and pulling them apart by inspection alone is hard. The deconstruction view turns "왜 안 가셨어요?" into a tree of why + negation + go + honorific + past + polite-question, which is the structural insight you need to start producing your own sentences. ## I have not learned Hangul yet. Can I still use FlixFluent? Yes. FlixFluent ships native Korean romanization (Revised Romanisation by default) so you can read along while you study Hangul separately. Hangul is well worth a weekend of focused study; relying on romanisation past the first month becomes a crutch. But for the first weeks, having ㅎㅏ-ㄴ-ㄱㅜㄱ-ㅇㅓ rendered as "Hangugeo" lets you keep watching while you build the script. Sound comes with it: every word and line has a speaker button whose pronunciation audio is generated in the context of that exact sentence, so you hear the line as it is actually said before you try to say it yourself. ## Which Korean Netflix shows are good for learners? Slow-paced romance dramas (Crash Landing on You, My Mister), variety shows with on-screen captions (Running Man), and slice-of-life shows generally outperform action and historical dramas for early learners. Saeguk (historical) dramas use older registers and vocabulary that is not productive for daily-life Korean. Action and crime drama dialogue is fast and slang-heavy. For a first show, a contemporary romance or family drama gives you the largest overlap with the Korean people actually speak today. ## A 30-day plan for using FlixFluent on Korean Netflix Watch one episode every other day with full FlixFluent assistance, and one episode on the off-day with subtitles off where possible — alternating helps both deliberate study and listening fluency. Days 1–10: every word you do not know, hover. Every sentence you cannot parse, click for full deconstruction. Auto-pause on for shadowing. Days 11–20: hover only words you do not recognise after a beat. Deconstruct only the sentences whose meaning you cannot infer. Days 21–30: try a Korean-only subtitle pass first; turn the English subtitle on only when you genuinely need it. The English subtitle becomes a check, not a crutch. Throughout: the words you look up land in the vocabulary trainer (app.flixfluent.com) automatically, each with the sentence and episode it came from. Ten minutes of FSRS-scheduled review a day keeps yesterday's episode vocabulary from evaporating — see /vocabulary-trainer/. ### Korean-learning tools at a glance | Tool | Format | Korean-specific depth | Price | | --- | --- | --- | --- | | FlixFluent | Chrome extension on Netflix + YouTube | Particle + verb deconstruction | $17 / month | | Language Reactor | Chrome extension on Netflix + YouTube | Token gloss only | Free / paid tier | | Lingopie | Standalone streaming app | Translation + flashcards | ~$12–$30 / month | | Duolingo | Mobile / web app | Drilled exercises (no streaming) | Free / Super ~$7–$13 / month | ## FAQ ### Do I need to know Hangul before using FlixFluent on Korean shows? No. Romanization is built in. But learn Hangul anyway — it is a weekend of work and pays off for years. ### Will FlixFluent teach me Korean grammar from scratch? Not as a curriculum. It scaffolds real-content grammar in context. Combine it with a structured grammar reference (Talk to Me in Korean, How to Study Korean, etc.). ### Is FlixFluent better than Language Reactor for Korean? For grammar comprehension, yes — particle and verb deconstruction is FlixFluent-specific. For dual subtitles alone, either works. ### Does FlixFluent support TOPIK preparation? Indirectly. Comprehensible input from Korean Netflix grows the listening and vocabulary base TOPIK tests. There is no TOPIK-specific mode, but the web app includes a Korean proficiency test — CEFR-mapped (A1–C2) multiple choice covering grammar, vocabulary, and reading, with attempt history — so you can measure progress over time. ### How do I retain the vocabulary I meet in K-dramas? The vocabulary trainer in the FlixFluent web app collects every word you look up, with its original sentence and episode, and schedules reviews with FSRS. Korean typing practice is supported via an on-screen keyboard with jamo composition. See /vocabulary-trainer/. ### Can I use FlixFluent on the Netflix mobile app? No. FlixFluent runs as a Chrome extension on the web player. Netflix on a laptop or desktop is required. ### Which K-dramas are easiest for beginners? Slow-paced contemporary romance and family dramas. Avoid historical or action-heavy shows for your first few series. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [FlixFluent vs Language Reactor](/compare/language-reactor/) - [Glossary: dictionary form, particle, romanization](/glossary/) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # Learn Spanish with Netflix > FlixFluent makes Spanish Netflix learnable with dual subtitles, hover translation, and click-to-deconstruct sentence analysis. Spanish is a category-I language for English speakers — closer to the finish line — but its conjugation, subjunctive, and per-region vocabulary still trip learners up. FlixFluent surfaces verb mood, tense, and pronoun resolution on click, and works the same on European, Mexican, Argentine, or Colombian shows. Canonical: https://flixfluent.com/en/learn/spanish-with-netflix/ ## Key facts - Spanish is FSI Category I (~600–750 hours) - FlixFluent labels verb mood (indicative / subjunctive / conditional) on click - Works across all Spanish dialects on Netflix - Auto-pause + 0.5×–1.5× playback for difficult dialogue - Best paired with one chosen dialect for the first 100 hours ## Why is Netflix a good way to learn Spanish? Netflix's Spanish catalogue is one of its largest, with shows from Spain, Mexico, Argentina, Colombia, Chile, and the United States. Subtitle quality is consistently high. Spanish is FSI Category I — about 600–750 hours of guided study to professional working proficiency. The bottleneck is rarely vocabulary; it is dialect breadth, fast conversational speech, and the subjunctive. Netflix exposes all three at scale. ## How do you handle different Spanish dialects on Netflix? Choose your target dialect deliberately for the first few months. FlixFluent's translations follow the subtitle source, so if you watch Mexican shows you get Mexican-flavoured Spanish. For neutral Latin American Spanish, Mexican productions (Roma, Club de Cuervos) are a strong default. For peninsular Spanish, Spanish productions (La Casa de Papel, Las Chicas del Cable) work. For Río de la Plata Spanish (vos, sh-sound for ll/y), Argentine shows (El Marginal, El Reino) are unmistakable. Mixing dialects too early causes confusion; commit to one for the first 100 hours, then expand. ## How does FlixFluent help with the Spanish subjunctive? Click any verb and FlixFluent returns the dictionary form, the conjugation, and the mood — present indicative, preterite, imperfect, present subjunctive, imperfect subjunctive, conditional. The subjunctive is a wall most Spanish learners hit around the intermediate plateau. Seeing a sentence flagged "imperfect subjunctive after expression of doubt" instead of guessing at it from translation alone collapses weeks of confusion into a few hours of pattern recognition. ## Native Spanish on Netflix is too fast. What do I do? Use FlixFluent's 0.5×–1.5× playback control plus auto-pause at end of subtitle line. Together they give you time to read, parse, and listen again. Slow playback above 0.7× usually keeps prosody recognisable. Below 0.7× the audio starts sounding off; at that point use auto-pause and rewind line-by-line instead of relying on slow speed. ## Which Spanish-language Netflix shows are best for learners? Slice-of-life dramas with clear diction (La Casa de las Flores, Club de Cuervos, Élite at lower intensity) outperform fast-talking comedy and slang-heavy reality TV for new learners. For absolute beginners, animated shows dubbed into Spanish (Avatar: The Last Airbender, Pocoyo for very early stages) are calibrated slower and clearer than adult drama. They are not babyish if you treat them as a stepping stone. ## A 30-day plan for using FlixFluent on Spanish Netflix Two episodes a week with full assistance, plus a third with subtitles off as a comprehension check. Weeks 1–2: dual Spanish + English subtitles, hover all unknowns, deconstruct all subjunctive sentences explicitly. Weeks 3–4: Spanish-only subtitles, hover sparingly, deconstruct only verb-mood ambiguities. End of month: take one episode at full speed with no subtitles. Note how much plot you tracked. That is your real listening level. ### Tools for Spanish learners on Netflix | Tool | Best for | Price | | --- | --- | --- | | FlixFluent | Verb mood + dialect-aware deconstruction | $17 / month | | Language Reactor | Dual subtitles + saved phrases | Free / paid tier | | Lingopie | Curated Spanish-only catalogue | ~$12–$30 / month | | Duolingo | Vocabulary + grammar drills | Free / Super ~$7–$13 / month | ## FAQ ### Should I learn Latin American or peninsular Spanish first? Pick the one closer to where you plan to use Spanish. For US-based learners, Mexican Spanish is the most useful default; for Europe-based, peninsular. ### Will FlixFluent help with the subjunctive? Yes. Verb-mood labelling on click makes subjunctive use visible instead of inferred. ### Is Money Heist (La Casa de Papel) good for beginners? Mid-intermediate at the easiest. Fast, slang-heavy, lots of overlapping dialogue. Save it for later. ### Does FlixFluent work with dubbed shows? Yes — if Netflix has a Spanish audio track and Spanish subtitles, FlixFluent treats them like any other source. ### Can FlixFluent help me sound more native? Two ways. Auto-pause + slow playback enable shadowing, the single best non-conversation drill for accent — and every word and line has a speaker button with pronunciation audio generated in the context of that exact sentence, so you can hear a line cleanly before imitating it. ### Can I measure my Spanish level with FlixFluent? Yes — the web app has a CEFR-mapped Spanish proficiency test (A1–C2): 30 questions across grammar, vocabulary, and reading, with a per-category breakdown and attempt history. ### How do I keep the Spanish vocabulary I pick up from shows? The vocabulary trainer in the FlixFluent web app collects every word you look up — with the sentence and episode it came from — and schedules FSRS-spaced reviews. See /vocabulary-trainer/. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Glossary: subjunctive, shadowing, comprehensible input](/glossary/) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # Learn Japanese with Netflix > FlixFluent runs on Netflix and YouTube and is well-suited to Japanese learners because it deconstructs particle-rich sentences and ships native kana romanization. Japanese is a category-V FSI language for English speakers — the longest road, around 2,200 hours guided — but anime, J-dramas, and documentaries on Netflix make for high-quality input once you have the basics. Canonical: https://flixfluent.com/en/learn/japanese-with-netflix/ ## Key facts - Japanese is FSI Category V (~2,200 hours) - FlixFluent deconstructs verb stacks and labels particles - Native romanization: kana as rōmaji, kanji readings resolved per line with morphological analysis - Anime + drama mix recommended for balanced input - Strong overlap with K-drama use case (similar SOV + particles) ## Why use Netflix to learn Japanese? Netflix has a strong Japanese catalogue — anime (subbed and dubbed), live-action drama, films, documentaries — with reliable Japanese and English subtitles on most titles. Anime tends to use stylised speech (heavily gendered, archaic, role-language) that does not transfer cleanly to real conversation. J-dramas and slice-of-life live-action are closer to spoken Japanese. Mix both, but weigh the realistic content if your goal is speaking with people. ## How does FlixFluent help with Japanese particles? Click any word and FlixFluent labels each particle (は, が, を, に, で, と, から, まで, ね, よ, …) with its grammatical role and pragmatic function. Japanese particles do almost all the syntactic work. The difference between 私は学校に行く and 私が学校に行く is grammatically subtle and pragmatically large; FlixFluent surfaces topic vs subject marking explicitly so the distinction stops being invisible. ## How does FlixFluent handle Japanese verb forms? Click a verb and FlixFluent returns the dictionary form, conjugation chain (ます-form, て-form, た-form, ない-form, conditional, passive, causative, potential), and politeness register. Japanese verbs stack — 食べさせられたくなかった (didn't want to be made to eat) is six morphemes deep — and parsing them by inspection is the wall most learners hit at low intermediate. Deconstruction collapses that wall to a list of labelled morphemes. ## I am still learning kana and kanji. Is FlixFluent useful? Yes. FlixFluent ships native kana romanization, and kanji readings are generated per line with morphological analysis — the reading shown is the one that sentence actually uses. Romanization is a starter scaffold; aim to drop it within the first 100 hours of study. Kanji acquisition is a multi-year project — RTK, JPDB, or anki+immersion are the standard paths. FlixFluent reduces the friction of immersion, which is what the kanji-acquisition methods all assume. Multi-reading words are handled context-first: the romanization resolves 辛い to karai or tsurai per sentence, and the pronunciation audio behind each speaker button is generated with the same sentence as context, so what you hear matches what you read. ## Which Japanese Netflix shows are best for learners? Slice-of-life anime (Komi Can't Communicate, Aggretsuko) and J-dramas with clear diction (Midnight Diner: Tokyo Stories, The Makanai) work well for early-intermediate. Avoid samurai and yakuza dramas at the start — period registers and slang are hard. Avoid speed-talker comedy. The Japanese in calm slice-of-life shows is closer to what most learners actually need. ## A 30-day plan for FlixFluent + Japanese Netflix Three episodes a week with full FlixFluent assistance; one episode rewatched with subtitles off for listening. Weeks 1–2: hover everything; deconstruct every verb chain you see. Weeks 3–4: hover only words you do not recognise after a beat. Deconstruct only verb chains three morphemes deep or longer. End of month: try a single episode of a familiar show with Japanese-only subtitles and no hover. Note how much you understand. That is your real reading level. ### Tools for Japanese learners on Netflix | Tool | Best for | Price | | --- | --- | --- | | FlixFluent | Particle + verb-stack deconstruction with kana romanization | $17 / month | | Language Reactor | Dual subtitles + furigana + saved phrases | Free / paid tier | | Anki + Migaku | Sentence mining into SRS | Free / paid | | Duolingo Japanese | Drill recognition only | Free / Super ~$7–$13 / month | ## FAQ ### Will FlixFluent help me read kanji? It shows per-line romaji readings — resolved with morphological analysis, so multi-reading kanji come out right for that sentence — plus readings on click, but it is not a kanji curriculum. Pair it with RTK or JPDB. ### Should I start with anime or live-action? Live-action slice-of-life is closer to real Japanese. Anime is fine for motivation and listening, but weigh towards drama if your goal is conversation. ### Does FlixFluent show furigana? Not as inline kana above the kanji. Readings are shown as romaji in the romanization line — resolved per sentence with morphological analysis — and on click in the deconstruction view. ### How does FlixFluent handle words with multiple readings, like 辛い? Context-first. The romanization resolves the reading per line with morphological analysis, and the pronunciation audio is generated with the sentence passed as context — so 辛い is read karai in a food scene and tsurai in a hardship scene, in both the displayed romaji and the audio. ### Is FlixFluent better than Language Reactor for Japanese? For verb-stack deconstruction yes. For dual subtitles + furigana alone, Language Reactor is fine. ### How long until I can watch raw Japanese? Highly variable. 1,000+ hours of input is a common threshold for confident raw watching. ### Can FlixFluent replace Anki for Japanese vocabulary? It ships its own FSRS-based vocabulary trainer (web app) that collects the words you look up while watching, with their source sentence — and it imports existing Anki decks (.apkg). Whether that replaces Anki depends on how customised your current setup is. See /vocabulary-trainer/. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Glossary: dictionary form, particle, romanization](/glossary/) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # Learn German with Netflix > FlixFluent makes German Netflix usable for serious learners with dual subtitles, hover translation, and click-to-deconstruct sentence analysis that labels case (Nominativ, Akkusativ, Dativ, Genitiv), verb position, and separable prefixes. German is FSI Category II for English speakers — about 750 hours guided — and Netflix has enough German-original content (Dark, Babylon Berlin, How To Sell Drugs Online (Fast)) to keep a learner busy for years. Canonical: https://flixfluent.com/en/learn/german-with-netflix/ ## Key facts - German is FSI Category II (~750 hours) - FlixFluent labels case (Nom/Akk/Dat/Gen) on click - Verb-position and separable-prefix labelling - Compound noun decomposition on hover - Best for upper-beginner / lower-intermediate German learners ## Why is Netflix good for learning German? German Netflix Originals are clear, well-subtitled, and ambitiously produced; the supporting catalogue of dubbed shows means you can find German audio for almost any genre you already enjoy. German's reputation for difficulty comes from its case system, verb-position rules, and compound nouns. None of those resist input — they yield to repeated exposure with comprehension support, which is exactly what FlixFluent provides. ## How does FlixFluent help with German cases? Click any noun phrase and FlixFluent labels its case — Nominativ, Akkusativ, Dativ, Genitiv — and explains why (subject, direct object, indirect object, prepositional object, etc.). Cases are the reason "the man" can appear as der Mann, den Mann, dem Mann, or des Mannes in different sentences. Inferring case from translation alone is unreliable. Explicit labelling turns case from a memorisation exercise into a recognition skill. ## How does FlixFluent handle German verb position? Click any verb and FlixFluent shows whether it is in V2 main-clause position, sentence-final subordinate position, or part of a separable-prefix split, and identifies the related clause structure. German verb position is not a stylistic choice — it is grammatical. Sub-clauses send the verb to the end. Separable prefixes (anrufen → ich rufe an) split. Modals park the main verb at the end. Seeing the position of the verb labelled by clause type makes the rule learnable instead of mysterious. ## How does FlixFluent help with German compound nouns? Hover any compound and FlixFluent breaks it into its component parts with translations of each — so Geschwindigkeitsbegrenzung shows as Geschwindigkeit (speed) + Begrenzung (limit) instead of one opaque word. German's love of compounds is half scary, half delightful. Once you can decompose them automatically, vocabulary acquisition compounds (sorry) faster than in languages without that mechanism. ## Which German Netflix shows should I start with? Dark for atmospheric thriller (slow, clear), How To Sell Drugs Online (Fast) for casual modern speech, Unorthodox for slower paced drama, Kleo for stylised but listenable spy thriller. Avoid Bavarian or Swiss dialect content for your first hundred hours — Hochdeutsch dub or production is the safer default. Once your ear is trained, branching into dialect is a treat. ## A 30-day FlixFluent + German Netflix plan Three to four episodes a week, half with English+German dual subtitles and half with German-only subtitles. Weeks 1–2: dual subtitles, hover all unknowns, deconstruct any sub-clause whose verb position you cannot explain. Weeks 3–4: German-only, hover sparingly, deconstruct only when case is genuinely ambiguous. Track one metric: how often you correctly predict the case of a noun phrase before clicking. That is your learning signal. ### Tools for German learners on Netflix | Tool | Best for | Price | | --- | --- | --- | | FlixFluent | Case + verb-position deconstruction | $17 / month | | Language Reactor | Dual subtitles + saved phrases | Free / paid tier | | Lingopie | Curated German catalogue | ~$12–$30 / month | | Duolingo | Drill cases + vocabulary | Free / Super ~$7–$13 / month | ## FAQ ### Will FlixFluent teach me German cases from scratch? Not as a curriculum. It scaffolds case in real sentences. Pair with a structured grammar source (e.g. Hammer's German Grammar, Lingolia). ### Is Dark a good first German show? Yes if you can handle slow thriller pacing. The dialogue is unhurried and clearly enunciated. ### Does FlixFluent handle Austrian or Swiss German? Translation works, but dialect-specific morphology is best learned with dialect-specific resources. ### How does FlixFluent compare to Language Reactor for German? Language Reactor handles dual subtitles fine. FlixFluent's edge is case + verb-position labelling. ### Will I learn the genders of nouns from watching? Partially. Combine watching with flashcard drilling for der/die/das, especially for the first 1,000 nouns. FlixFluent's built-in vocabulary trainer (web app) collects the German words you look up — with their original sentence — and schedules them with FSRS; see /vocabulary-trainer/. ### Can I measure my German level with FlixFluent? Yes — the web app has a CEFR-mapped German proficiency test (A1–C2): 30 questions across grammar, vocabulary, and reading, with a per-category breakdown and attempt history. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Glossary: case, dictionary form, comprehensible input](/glossary/) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # Learn French with Netflix > FlixFluent turns French Netflix into structured study with dual subtitles, hover translation, and click-to-deconstruct analysis that names verb tense, mood, and the antecedents of clitic pronouns. French is FSI Category I for English speakers — roughly 600–750 hours to professional proficiency — and the chasm between written French and spoken French closes faster with audio-anchored practice than with textbook study alone. Canonical: https://flixfluent.com/en/learn/french-with-netflix/ ## Key facts - French is FSI Category I (~600–750 hours) - FlixFluent labels verb tense and mood on click - Pronoun resolution for stacked clitics - Liaison-friendly slow playback (0.5×–1.5×) - Pair with grammar reference for full-stack learning ## Why use Netflix to learn French? Netflix has a deep catalogue of French film and series — Lupin, Call My Agent! (Dix pour cent), Marseille, The Bureau (Le Bureau des Légendes) on partner platforms — with high-quality subtitle tracks. The largest single barrier in French is the gap between spelling and speech: ils mangent and il mange sound identical. Watching with subtitles makes the gap visible and trainable instead of abstract. ## How does FlixFluent help with French verbs? Click any verb and FlixFluent returns the dictionary form, the conjugation, and the mood/tense — présent, imparfait, passé composé, plus-que-parfait, futur simple, conditionnel, subjonctif présent, subjonctif imparfait, and so on. French has more named verb forms than most learners care to memorise. Encountering each in context, labelled, beats memorising conjugation tables in isolation. By the time you have seen subjonctif présent labelled twenty times in real sentences, the rule of "after expressions of doubt, emotion, necessity" stops being abstract. ## How does FlixFluent handle French clitic pronouns? Click any pronoun in a verb cluster (je le lui ai donné) and FlixFluent identifies it (le = direct object, lui = indirect object) and links it to its antecedent in the surrounding subtitle when possible. French is dense with stacked pronouns. Beginners often translate them in the wrong order or skip them. Surfacing each pronoun's grammatical role and what it refers to is one of the highest-leverage fixes for intermediate-plateau French. ## What about liaison and elision in spoken French? Auto-pause + 0.5×–1.5× playback let you slow speech down to hear liaisons (les_amis, vous_êtes) and elisions (j'ai, qu'il) you would otherwise miss. Liaison is the reason ils ont and il ont can sound similar; the difference between [il‿zɔ̃] and [il ɔ̃] is exactly what trains an intermediate ear. Slowing playback to 0.7× preserves the liaison without distorting the prosody enough to confuse you. ## Which French Netflix shows are best for learners? Lupin (clear modern French, Parisian setting), Call My Agent! (workplace dialogue, fast but well-articulated), Marianne (slow horror with deliberate dialogue), Le Chalet (procedural, mid-paced). Dubbed shows can also work — many learners use Friends or Brooklyn Nine-Nine in French dub because the source dialogue is familiar. Dub quality varies but Netflix's French dubs are generally strong. ## A 30-day plan for FlixFluent + French Netflix Three episodes per week with full FlixFluent assistance and one rewatch with French-only subtitles. Weeks 1–2: dual subtitles, hover unknowns, deconstruct any verb whose tense you cannot identify by inspection. Weeks 3–4: French-only subtitles, hover sparingly, deconstruct only sentences with stacked pronouns or subjunctive. End of month: rewatch one favourite scene with no subtitles. Track which lines you can now hear cleanly. That is your listening progress. ### Tools for French learners on Netflix | Tool | Best for | Price | | --- | --- | --- | | FlixFluent | Verb tense/mood + clitic pronoun resolution | $17 / month | | Language Reactor | Dual subtitles + saved phrases | Free / paid tier | | Lingopie | Curated French catalogue | ~$12–$30 / month | | Duolingo French | Vocabulary + grammar drills | Free / Super ~$7–$13 / month | ## FAQ ### Will FlixFluent teach me French from zero? Not as a curriculum. It scaffolds in-context learning. Use Duolingo, Pimsleur, or a textbook for the first 100 hours. ### Is Lupin good for beginners? Mid-intermediate at the easiest. Vocabulary is wide and dialogue is quick. ### Does FlixFluent help with the subjunctive? Yes — it labels mood explicitly so you can recognise subjunctive triggers in real sentences. ### Can FlixFluent improve my pronunciation? Two ways. Shadowing: auto-pause + slow playback let you repeat each line aloud. And every word and line has a speaker button — the pronunciation audio is generated in the context of that exact sentence, so you hear liaison and elision pronounced correctly before you imitate them. ### Can I measure my French level with FlixFluent? Yes — the web app has a CEFR-mapped French proficiency test (A1–C2): 30 questions across grammar, vocabulary, and reading, with a per-category breakdown and attempt history. ### Quebec French vs Metropolitan French — does FlixFluent care? It works on either. Vocabulary differences will surface naturally; commit to one variant for the first 100 hours to avoid confusion. ### How do I retain the French vocabulary I look up? Looked-up words feed the vocabulary trainer in the FlixFluent web app — FSRS-scheduled flashcards that keep the original sentence and episode as context. See /vocabulary-trainer/. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Glossary: subjunctive, shadowing, comprehensible input](/glossary/) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # How to get dual subtitles on Netflix > FlixFluent is the simplest way to get dual subtitles on Netflix in 2026. Install the Chrome extension, choose a target language and a base language in the popup, and reload Netflix; both subtitle tracks render simultaneously without any tampering with Netflix's player — and when Netflix has no subtitle track in your language, FlixFluent AI-translates the original line for you, so bilingual subtitles work even where Netflix's own language list falls short. This page walks through install, configuration, common pitfalls, and how to combine dual subtitles with the rest of FlixFluent's learning features. Canonical: https://flixfluent.com/en/guides/dual-subtitles-netflix/ ## Key facts - Works on Chrome and Chromium-based browsers (Edge, Brave, Opera) - Does not work on Netflix mobile apps — web only - Requires Netflix subscription separately (FlixFluent does not stream content) - Subtitle source data comes from Netflix's own tracks (no third-party scraping); the base line is AI-translated from it when Netflix lacks your language - Native-track-first: Netflix's own subtitles are always preferred when your language is available - $17 / month, $159 / year, or $399 lifetime — 7-day free trial, 30-day money-back guarantee ## How do I install FlixFluent for Netflix dual subtitles? Open the Chrome Web Store, install FlixFluent, sign in, and reload any Netflix tab. Dual subtitles are enabled by default once a target and base language are set. Step 1 — Visit chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg and click "Add to Chrome". Step 2 — Pin the extension to your toolbar (optional but useful) and click the icon to open the popup. Step 3 — Choose your target language (the language you are learning) and your base language (your native or strongest language). FlixFluent will pull the matching subtitle tracks from Netflix and overlay them. Step 4 — Open or reload a show on netflix.com. Dual subtitles render at the bottom of the video. ## How do I customise the dual subtitles? FlixFluent's popup exposes target language, base language, romanization on/off (for non-Latin scripts), auto-pause on/off, and playback speed. For absolute beginners, enable romanization and set playback to 0.7×–0.8×. For intermediate learners, disable romanization and keep playback at 1×. Auto-pause is best added once you decide to shadow specific lines. ## Why do my dual subtitles not appear? Most failures are one of three causes: the title has no subtitle track in the language you are learning, you need to reload the page after installing, or another extension is intercepting the player. Check Netflix's native subtitle menu (the dialog bubble icon during playback) — if the language you are learning is not listed there, FlixFluent has nothing to overlay. Some originals are subtitle-light at launch and gain tracks weeks later. Your own language missing from that menu is not a failure. FlixFluent only needs the target-language track: when Netflix has no subtitles in your base language, the extension shows "No native subtitles — translating instead." and AI-translates the line — see the next section. If subtitles flicker or disappear when you move the player, refresh the page once. The first FlixFluent injection sometimes loses sync with Netflix's own player swap. Disable other Netflix-targeting extensions (Language Reactor, Trancy, Subadub) for a clean test. Only one should render subtitles at a time. ## What if Netflix has no subtitles in my language? Netflix's subtitle list varies by region and title, and smaller languages are often missing. FlixFluent covers that side itself: the base line is AI-translated from the original subtitles whenever your language has no track. The two subtitle lines have different requirements. The target line — the language you are learning — must exist as a Netflix track, because it is the actual dialogue. The base line is only there for meaning, so when Netflix does not carry it, FlixFluent's backend translates the original-language cues with a large language model and streams them in, starting with the scene you are watching. The generated translation is deliberately literal — register and word order preserved, idioms not swapped for local equivalents, one cue in, one cue out — because a translation that mirrors the original structure is more useful for learning than a smooth paraphrase. Translations are cached and integrity-checked, so the next viewer of the same episode gets them instantly. When Netflix does carry a track in your language, FlixFluent always prefers it: the platform's human-written subtitles are used as-is, time-matched to the target line, with no AI rewriting. ## How do I use dual subtitles for actual learning? Hover any word for a contextual translation; click any word for full deconstruction (dictionary form, stem, particle, grammar role); click any sentence header for a structural breakdown. The minimum useful loop: watch a scene, hover unknowns, click any sentence whose meaning you cannot reconstruct, take a beat to read the deconstruction, continue. Don't over-pause early on — losing the thread of the show is worse for retention than missing a few words. Explanations are explorable: every highlighted part inside an explanation is itself clickable and opens a deeper explanation of that part, with a back arrow to retrace the chain (the digger). And every word you look up is collected into the vocabulary trainer at app.flixfluent.com for FSRS-spaced review later — see /vocabulary-trainer/. For shadowing: enable auto-pause, drop playback to 0.7×, and repeat each line aloud while pausing. One scene per session is plenty. ## Which subtitle tracks should I pick? For the target track, prefer "[Language] (Original)" over translated subtitles when available — translations smooth out idioms. For Korean shows, choose Korean as target and English as base; Netflix's closed-caption Korean track is more accurate to the dialogue than the dub-aligned variant. For Spanish, pick the regional flavour you are learning (Latin America vs Spain) — Netflix usually offers both. ### Quick troubleshooting matrix | Symptom | Likely cause | Fix | | --- | --- | --- | | No subtitles at all | No target-language track on this title | Pick another title or change target language | | Base line shows "translating instead" | Netflix has no track in your base language | Nothing to fix — the AI-translated line streams in automatically | | Only one subtitle track shows | Base language not set | Open extension popup, set base language | | Subtitles flicker | Player just reloaded | Refresh page once | | Wrong language overlay | Wrong target language selected | Change target in extension popup | | Subtitles overlap with Netflix's | Native subtitles not disabled | Turn off native subtitles in Netflix player | ## FAQ ### Does FlixFluent give me dual subtitles for free? Dual subtitles are part of the paid feature set, available during the 7-day free trial. ### Can I get dual subtitles without an extension? Netflix's native player only shows one subtitle track at a time. Browser extensions are the only practical path on the web player. ### Will Netflix ban my account for using FlixFluent? No. FlixFluent reads subtitle tracks Netflix already serves; it does not modify or download video content. ### Does it work on Netflix mobile? No. Browser extensions do not run inside the Netflix mobile app. Use a laptop or desktop with Chrome. ### Can I customise font size and colour of the dual subtitles? Yes — the extension popup exposes font, size, and colour controls. ### What languages are supported? FlixFluent supports 28 learnable languages in any pairing. The language you are learning must have a Netflix subtitle track; your base language does not — FlixFluent AI-translates the base line when Netflix lacks it. Deconstruction depth is highest for Korean, Japanese, Chinese, Spanish, French, German, and several others. ### Does my native language need to be available on Netflix? No. If Netflix has no subtitle track in your language, FlixFluent shows "No native subtitles — translating instead." and generates the base line with AI translation. Only the target language — the one you are learning — must exist as a Netflix track. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Learn Korean with Netflix](/learn/korean-with-netflix/) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # How to get dual subtitles on YouTube > FlixFluent adds dual subtitles to YouTube as easily as it does to Netflix. Install the Chrome extension, set your target and base languages, and any video with a caption track in your target language gets a bilingual overlay. YouTube's mix of human-uploaded, auto-generated, and auto-translated captions complicates things compared to Netflix, so FlixFluent labels what you are reading: auto-generated (ASR) and auto-translated tracks are visibly flagged, and when no caption track exists in your language, the base line is AI-translated from the original captions. Canonical: https://flixfluent.com/en/guides/dual-subtitles-youtube/ ## Key facts - Same extension as Netflix — install once - Auto-generated (ASR) and auto-translated tracks are visibly flagged — warning on load plus a persistent icon on the overlay - No captions in your language? The base line is AI-translated from the target captions automatically - Comprehensible-input channels are highest-leverage starting point - Native YouTube CC must be off to avoid overlap - Works on youtube.com web only — not the YouTube mobile app ## How do I install FlixFluent for YouTube dual subtitles? Identical to Netflix install. Add the extension from the Chrome Web Store, sign in, set target + base language, and reload YouTube. The same extension binary works on both YouTube and Netflix; you do not install separate versions. ## How FlixFluent flags auto-generated (ASR) captions Human-uploaded captions are accurate; auto-captions are speech-to-text and contain errors. FlixFluent detects which kind a video is serving and warns you instead of leaving you to guess. Auto-generated (ASR) and auto-translated tracks are identified from the YouTube player's own track metadata. When your target track is one of them, FlixFluent shows a brief on-screen warning as the track loads and keeps a persistent warning icon on the subtitle overlay; its tooltip explains that the track was auto-generated by YouTube and that quality is generally lower and may not be ideal for language learning. Auto-generated captions also arrive as rolling word fragments rather than sentences. FlixFluent regroups them into full sentence cues before display, so lines read naturally and sentence deconstruction gets real sentences to work with. For comprehensible-input channels (Dreaming Spanish, Easy German, Comprehensible Japanese), captions are usually human-uploaded and accurate — no flag appears. For news, vlogs, and most general YouTube, expect the auto-generated flag; those captions are still usable, just uneven on punctuation and proper nouns. ## What if a YouTube video has no captions at all? FlixFluent cannot fabricate captions where YouTube provides none. The extension will gracefully render nothing rather than guess. For language learning, prefer creators who consistently provide captions. The "comprehensible input" subgenre is built around captioned channels for exactly this reason. ## YouTube dual subtitles when your language has no captions Most YouTube videos carry captions in one or two languages at best. When your base language is not one of them, FlixFluent AI-translates the target captions for the second line. The overlay shows "No native subtitles — translating instead." and the translated lines stream in, with the part of the video you are watching translated first. You do not need to switch YouTube to auto-translated captions for this — FlixFluent's own translation runs server-side, is generated per cue and deliberately literal, and is cached for the next viewer. In practice the only requirement for YouTube dual subtitles is one caption track in the language you are learning — uploaded or auto-generated. The base line always resolves: YouTube's own track in your language when one exists, FlixFluent's AI translation when it does not. ## Protection against mislabeled caption tracks Some uploads label a caption track with one language while the text inside is another. FlixFluent checks the text itself instead of trusting the label. If fewer than 30% of a track's cues are written in the script the label promises (for example, a track labeled Korean that is mostly Latin text), FlixFluent treats the track as mislabeled: it switches to YouTube's auto-generated track for the actual spoken language where one exists, and otherwise refuses to display or save the track rather than teach you the wrong text. ## Should I use YouTube's auto-translate captions with FlixFluent? You never need them for the base line — FlixFluent generates its own translation. Auto-translate only enters the picture as a last resort for the target line, and it is flagged when it does. For the base line, FlixFluent's own AI translation covers missing languages, so there is no reason to switch YouTube into auto-translated captions yourself. For the target line — the language you are learning — FlixFluent uses YouTube's auto-translated track only when the video has no caption track in that language at all, and marks it with the same persistent warning as ASR tracks. Treat flagged auto-translated tracks as a last resort: the text was machine-translated rather than natively written, so it is weaker learning material. ## Which YouTube channels are best for using with FlixFluent? Comprehensible-input channels for your target language are the highest-quality input. They caption consistently, speak slowly, and pick vocabulary deliberately. Korean: 슛에듀 Korean, Korean from Zero, easyKorean. Spanish: Dreaming Spanish, Español con Juan. Japanese: Comprehensible Japanese, Nihongo no Mori. German: Easy German, Deutsch für Euch. French: Français Authentique, InnerFrench. Use FlixFluent on these channels first; branch into native vlogs and news once you can keep up. ## Why are my YouTube dual subtitles not working? Check three things: the video has a caption track in your target language, native captions are off, and no other extension is competing. Toggle YouTube's native CC button off — FlixFluent renders its own track and the two will overlap if both are on. If a video genuinely has no captions, FlixFluent will not render anything; switch to a captioned video. ### YouTube caption types and FlixFluent behaviour | Caption type | Accuracy | FlixFluent flags it | Recommended? | | --- | --- | --- | --- | | Human-uploaded (target language) | High | No flag | Yes — best | | Auto-generated / ASR (target language) | Medium | Warning banner + persistent icon | Yes — with caveats | | Auto-translated (any → target) | Low | Warning banner + persistent icon | Last resort — only when the target language has no track | | No captions in your base language | — | "No native subtitles — translating instead." notice | Fine — FlixFluent AI-translates the base line | | No captions at all | — | — | No — pick another video | ## FAQ ### Does FlixFluent work on YouTube Shorts? Where Shorts have caption tracks, yes. Many Shorts have no captions at all. ### Can FlixFluent translate auto-captions in real time? Yes — hover translation works on any caption text FlixFluent renders, including auto-captions. When the track is auto-generated, a persistent warning icon reminds you the source text may contain recognition errors. ### How do I know if a caption track is auto-generated? FlixFluent detects it from the player's track metadata and tells you: a warning shows when the track loads, and a persistent warning icon with an explanatory tooltip stays on the subtitle overlay. Auto-translated tracks get the same treatment. ### What if a video has captions in my target language but not in mine? That is enough. FlixFluent AI-translates the target captions for the base line and shows "No native subtitles — translating instead." while the translated lines stream in. ### Can I go deeper than a single word explanation? Yes — inside any explanation, every highlighted part is itself clickable and opens a deeper explanation (the digger), with back navigation. Looked-up words also feed the FSRS vocabulary trainer at app.flixfluent.com; see /vocabulary-trainer/. ### Does FlixFluent work on YouTube TV / YouTube Music / YouTube Kids? Only youtube.com main site is officially supported. ### Can I learn from auto-captions reliably? Use them as a rough guide for listening practice; do not trust spelling, punctuation, or proper nouns. FlixFluent flags auto-generated tracks with a visible warning so you always know when you are reading one, and regroups their word fragments into full sentences for readability. ### Is FlixFluent free for YouTube? Same pricing as for Netflix — $17 / month with a 7-day free trial. ### Why do dual subtitles overlap with the YouTube CC? YouTube's native CC is still on. Toggle it off in the player. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Dual subtitles on Netflix — guide](/guides/dual-subtitles-netflix/) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # Learning Korean from K-dramas: a practical playbook > FlixFluent is the most direct tool for converting K-drama watching time into Korean comprehension. This playbook covers how to choose a first show, the per-episode study cadence that actually retains material, how to drill particles and verb endings as they appear, and how to integrate shadowing without burning out. It assumes you know Hangul or are willing to learn it in the first week. Canonical: https://flixfluent.com/en/guides/learning-korean-from-kdramas/ ## Key facts - Hangul takes a weekend; learn it before episode 3 - 5–10 deliberate deconstructions per episode is the sweet spot - Pick one show; finish it; then pick another - Shadowing pays off after ~70% comprehension at 1× speed - Banmal vs jondaetmal matters — watch for it from the start ## How do I pick a first K-drama for learning? Pick a contemporary romance or family drama with slow-paced dialogue, 16 episodes or fewer, and a setting you find watchable for 20 hours. Avoid historical (saeguk), action, and crime dramas first. Strong starter shows in 2026: Crash Landing on You (clear diction, balanced register), My Mister (slow, deliberate, emotionally rich vocabulary), Reply 1988 (warm family Korean), Hometown Cha-Cha-Cha (rural pace, friendly speech). Save Squid Game and Vincenzo for later — both are dialogue-dense and slang-heavy. ## What is the per-episode study cadence? A "learning watch" episode takes 90–120 minutes, not 60. Roughly: 60 minutes show + 30–60 minutes of pause-and-deconstruct on 5–10 sentences per episode. Choose 5–10 sentences per episode that you cannot parse on first listen but can almost reach. Click each for full deconstruction. Note the particles or verb endings used. Move on. Trying to deconstruct every sentence is the path to abandonment. A second pass on the same episode 2–3 days later, with subtitles off where possible, locks in what you learned without adding new load. The next morning, clear your queue in the vocabulary trainer (app.flixfluent.com): every word you clicked during the episode is already there as a flashcard with its sentence and episode reference, FSRS-scheduled. Ten minutes covers a normal day's queue — the trainer caps new cards adaptively so the review debt never snowballs (see /vocabulary-trainer/). ## How do I drill Korean particles using FlixFluent? For the first month, click every noun phrase whose particle you cannot identify. Note the particle in a separate doc with the sentence in context. After 30 such notes, the patterns start emerging — 은/는 marks topic, 이/가 marks subject newness, 을/를 marks direct objects, 에 marks static location and time, 에서 marks dynamic location, 으로 marks instrument or direction, and so on. Particles you encounter weekly become automatic in 2–3 months. ## How do I drill Korean verb endings? Click any verb whose ending you cannot decompose. FlixFluent returns dictionary form + stem + the chain of endings; copy the chain into your notes. Verbs with three or more stacked endings (-아 보 시 었 어 요) are the highest-leverage targets. Each ending is a small grammatical concept; learning twenty in context is faster than learning a hundred from a chart. ## When should I add shadowing? Add shadowing once you can comfortably understand 70%+ of a slow K-drama at 1× speed with dual subtitles. Shadowing too early causes you to repeat sounds you do not understand. With FlixFluent: enable auto-pause, drop playback to 0.7×, repeat aloud, advance. One scene per session — fifteen minutes is plenty. The speaker button on any word or line replays it with pronunciation audio generated for that exact sentence, useful for isolating a phrase without re-seeking the video. ## Common mistakes to avoid Watching too many shows in parallel, deconstructing every sentence, skipping Hangul because romanization is available, and ignoring formal/informal register. Pick one show, finish it, then pick another. Deconstruct selectively. Learn Hangul in week one. Pay attention to which characters speak 반말 (banmal) and which speak 존댓말 (jondaetmal); the difference is socially loaded and a learner who flattens it sounds rude. ### K-drama difficulty for Korean learners | Show | Difficulty | Why | | --- | --- | --- | | Crash Landing on You | Beginner-friendly | Clear diction, mixed military and civilian registers, romantic pacing | | Reply 1988 | Beginner-friendly | Family banter, regional warmth, slow plot | | My Mister | Lower intermediate | Slow, melancholy, repetition-friendly | | Hometown Cha-Cha-Cha | Lower intermediate | Rural pace, friendly conversation | | Vincenzo | Mid intermediate | Heavy slang, code-switching, fast jokes | | Squid Game | Mid intermediate | Aggressive shouting, slang, multiple registers | | Mr Sunshine | Advanced | Historical register, archaic vocabulary | | Kingdom | Advanced | Saeguk register, court language | ## FAQ ### How long until I can watch K-dramas without subtitles? For most learners, 1,000+ hours of input. With FlixFluent it tends to feel faster because deconstruction reduces lookup friction. ### Do I need to study Korean grammar separately? Yes. FlixFluent scaffolds in-context grammar; pair it with a structured source like Talk to Me in Korean or How to Study Korean. ### Will I pick up regional accents from K-dramas? Standard Seoul Korean dominates Netflix shows. Regional accents (Busan, Jeolla) appear occasionally and are noted in dialogue. ### Is variety TV (running man, knowing bros) good for learning? Excellent for vocabulary, hard for beginners — overlapping speech and slang. Save it for intermediate. ### Can FlixFluent help with TOPIK preparation? Indirectly. The vocabulary and grammar you internalise through immersion overlaps with TOPIK content but the test format requires separate practice. For tracking progress, the web app has a Korean proficiency test (CEFR-mapped, not TOPIK-format) with attempt history. ### How do I avoid burnout? Cap deliberate deconstructions at 10 per episode. Watch for joy first, learning second. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) - [FlixFluent FAQ](/faq/) - [Learn Korean with Netflix](/learn/korean-with-netflix/) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # Glossary of language-learning terms > This glossary collects the language-learning vocabulary FlixFluent uses across its product and documentation. Most entries are short definitions plus a one-paragraph elaboration covering the term in practice. Use it as a reference when reading the comparison or learning guides — every term linked from elsewhere on this site has its definition here. Canonical: https://flixfluent.com/en/glossary/ ## Key facts - Definitions for the language-learning vocabulary FlixFluent uses - Cross-linked from compare, learn, and guide pages - Includes technique terms, linguistic terms, and assessment terms - Reference for FSI categories and CEFR levels ## How to use this glossary Each entry stands alone. Read top-to-bottom for orientation, or jump to a term using the table of contents below. Terms are organised loosely from technique terms (dual subtitles, comprehensible input) to linguistic terms (particle, dictionary form) to assessment terms (FSI categories, CEFR). ### Dual subtitles Two subtitle tracks rendered simultaneously — one in your target language, one in your base (native) language. Also called bilingual subtitles, double subtitles, or two subtitles at once. Used for comprehension support: the base track answers what was said, the target track shows how it was said. FlixFluent renders dual subtitles on Netflix and YouTube via the Chrome extension, using the platform's own track for the base line when your language is available and in-context AI translation when it is not. Full detail: /dual-subtitles/. ### Auto-generated captions (ASR) Captions produced by automatic speech recognition rather than written by a human — YouTube's "auto-generated" tracks are the common example. ASR captions contain recognition errors and arrive as rolling word fragments rather than sentences, so they are weaker learning material than human-written tracks. FlixFluent detects ASR and auto-translated tracks on YouTube from the player's own metadata, flags them with a visible warning (a banner plus a persistent icon on the subtitle overlay), and regroups the fragments into full sentence cues before display. Netflix has no ASR captions — its tracks are professionally authored. ### In-context translation A translation generated for a word as it is used in one specific sentence, rather than retrieved from a dictionary entry. The same word can mean different things in different lines, so FlixFluent generates every word translation per word + exact sentence + language pair, passing the surrounding lines as extra context, and caches it for that sentence. A dictionary lookup returns the same gloss everywhere; an in-context translation returns the meaning in play. FlixFluent uses no dictionary lookups anywhere in its translation pipeline. ### Comprehensible input Linguistic input slightly above your current ability, where the new vocabulary or grammar is supported by enough familiar context that you can roughly understand it (Stephen Krashen, "i+1"). The core thesis: acquisition happens when you understand most of what you hear or read, with manageable surprise. FlixFluent's tools (hover translation, deconstruction) lower the threshold of comprehensibility for material that would otherwise be too hard. ### Sentence mining The practice of harvesting sentences from native content and turning them into spaced-repetition flashcards. A typical mining loop is: encounter a sentence with one unknown word (i+1), save it as a flashcard with audio + text + translation, review with SRS over time. FlixFluent automates the capture half of this loop: every word you look up while watching is collected into the vocabulary trainer with its original sentence and an episode reference, and productive cards test you with a cloze built from that very sentence. Collections can also be imported from Anki (.apkg) or CSV, and exported as CSV. ### Romanization Writing a non-Latin script in Latin letters — for example Hangugeo for 한국어, sushi for 寿司. Romanization is a starter scaffold for learners who have not yet learned the target script. FlixFluent ships native romanization for Korean (Revised Romanisation), Japanese (rōmaji), Chinese (pinyin), and others. Drop it as soon as you have the script. ### Text-to-speech (TTS) Synthesised speech generated from text — in FlixFluent, the pronunciation audio behind every speaker button. FlixFluent generates TTS audio with the word's sentence passed as context, so multi-reading words are pronounced the way that sentence requires — Chinese 还 as hái or huán, Japanese 辛い as karai or tsurai — instead of a default reading that can contradict the displayed pinyin or furigana. Each clip is generated once and cached; if generation is unavailable, the browser's built-in voices are used as a fallback. ### SRS (spaced repetition system) Software that schedules flashcard reviews based on how well you remember each card — easier cards reappear later, harder ones sooner. Anki, JPDB, and Memrise are common SRS tools. FlixFluent embeds its own: the vocabulary trainer in the web app schedules cards with FSRS at a 90% retention target, fed by the words you look up while watching. See /vocabulary-trainer/ for the full mechanics. ### FSRS (Free Spaced Repetition Scheduler) An open-source spaced-repetition algorithm that models each card's difficulty, memory stability, and current retrievability, and schedules the next review for when predicted recall falls to a target retention. FSRS is the modern successor to the SM-2 heuristic used by classic flashcard apps, and is the algorithm family modern Anki ships as its recommended scheduler. In the open srs-benchmark (roughly 10,000 anonymised Anki collections, ~350 million reviews) FSRS variants predict recall more accurately than SM-2 for the large majority of users. FlixFluent's vocabulary trainer uses FSRS with a fixed 90% retention target. ### Retrieval practice (testing effect) Strengthening memory by actively recalling an item rather than re-reading it. Delayed retention after self-testing reliably beats restudying (Roediger & Karpicke, 2006). This is why flashcards ask before they tell. FlixFluent's trainer is recall-first at every setting: reveal-then-grade at minimum, typed production at the strictest. The optional "force me to type" mode is retrieval practice in its most demanding form. ### Cloze deletion A fill-in-the-blank exercise where a word is removed from a sentence and must be recalled from context. FlixFluent's productive cards are clozes built from the exact subtitle sentence where you originally met the word — the context you watched is the context you are tested in. ### Receptive vs productive recall Receptive recall: see the target-language word, retrieve the meaning. Productive recall: see the meaning, produce the target-language word. Production is the harder, stronger skill. FlixFluent's trainer starts cards receptive and, in auto mode, graduates them to productive once the receptive direction is established (several successful reviews plus stability thresholds). The direction can also be pinned to receptive-only or productive-only in settings. ### Digger FlixFluent's recursive explanation flow: inside any word or sentence explanation, each highlighted part is itself clickable and opens a deeper explanation of that part. A back arrow retraces the chain, and there is no depth limit — sentence → word → morpheme → related form, as far as curiosity goes. Available in the extension overlay on Netflix / YouTube and in the web-app trainer. ### Shadowing Repeating native speech aloud immediately after hearing it, without trying to translate. Shadowing trains the muscles of pronunciation and rhythm. FlixFluent's auto-pause + 0.5×–1.5× playback support shadowing without rewinding manually. Effective once you can comprehend roughly 70% of a passage at 1× speed. ### Dictionary form The base form of a word as it appears in a dictionary, before conjugation or inflection — e.g. Korean 가다 (go), Japanese 食べる (to eat), Spanish hablar (to speak). FlixFluent's click-to-deconstruct view returns the dictionary form of any verb (or other inflected word) so you can look it up cleanly. Without it, learners often try to look up conjugated forms (갔어요, 食べました) and get nothing. ### Particle A small functional word, usually attached after a noun or verb, that marks its grammatical role — Korean 은/는, 이/가, 을/를; Japanese は, が, を, に, で. Particles do most of the syntactic work in Korean and Japanese. FlixFluent labels each particle with its grammatical role on click, which is the single biggest comprehension win for learners of those languages. ### Grammar role The function a word or phrase plays in a sentence — subject, direct object, indirect object, location, time, instrument, modifier, etc. In English, grammar role is mostly inferred from word order. In Korean, Japanese, German, and many other languages, role is marked by particles or case endings. FlixFluent surfaces the role explicitly. ### FSI categories A US Foreign Service Institute classification of how long it takes a native English speaker to reach professional working proficiency in a target language. Category I (Spanish, French, Italian): ~600–750 hours. Category II (German): ~750 hours. Category III (Indonesian, Swahili): ~900 hours. Category IV (Korean, Russian, Hindi): ~1,100 hours and harder. Category V (Japanese, Chinese, Arabic, Korean (highest difficulty for English speakers)): ~2,200 hours. FlixFluent does not change these constants but reduces friction within them. ### CEFR Common European Framework of Reference, a six-level proficiency scale from A1 (beginner) to C2 (mastery). Roughly: A1 survival phrases, A2 simple conversation, B1 daily life, B2 nuanced opinions, C1 professional, C2 native-like. FlixFluent is most useful from late A2 onwards once basic grammar is in place. FlixFluent's web app measures CEFR level directly with proficiency tests for English, Korean, German, French, and Spanish — 30 questions across grammar, vocabulary, and reading, with a per-category breakdown. ### Auto-pause A FlixFluent feature that pauses playback at the end of each subtitle line, giving you time to read, parse, or repeat. Pairs with shadowing — pause, repeat, advance. Disable when you only want to watch. ### Click-to-deconstruct FlixFluent's feature for breaking down a clicked word or sentence into dictionary form, stem, particle, grammar role, and structural parse. Available on every word and sentence in supported languages. Higher-leverage in morphologically rich languages (Korean, Japanese, German, Russian, Turkish). ### Banmal / jondaetmal Korean informal speech (반말) and formal speech (존댓말). The difference is socially loaded — choosing the wrong register is rude. Watch for verb endings: -아/어 vs -아요/어요 vs -습니다/ㅂ니다. FlixFluent's deconstruction labels politeness register on every verb. ### Subjunctive A grammatical mood used to express doubt, possibility, necessity, emotion, or hypothetical situations — strong in Spanish, French, Portuguese, less so in English. FlixFluent labels mood (indicative / subjunctive / conditional) on click for romance languages, making subjunctive triggers visible in real sentences. ### Case (Nom / Akk / Dat / Gen) A morphological marking on a noun phrase indicating its grammatical role — German Nominativ (subject), Akkusativ (direct object), Dativ (indirect object), Genitiv (possessive). Languages with case (German, Russian, Latin, Finnish) require explicit role tracking. FlixFluent labels case on every clicked noun phrase in supported languages. ## FAQ ### Why is comprehensible input the dominant theory of acquisition? Because the alternatives — pure drilling, pure conversation, pure grammar study — all show diminishing returns past a certain point. Input that you mostly understand, in volume, has the strongest empirical track record. ### Do I have to learn the target script before using FlixFluent? No. Romanization is built in for Korean, Japanese, Chinese, and others. But learn the script — it pays off for years. ### How does deconstruction differ from translation? Translation gives you what a sentence means. Deconstruction gives you why it means that — particles, mood, role, dictionary form. ### Is sentence mining better than passive watching? For long-term retention of specific vocabulary, yes. For listening fluency, passive watching also matters. Most serious learners do both. ### Can I use FlixFluent at A1? You can but the value is lower — most sentences are above your level. FlixFluent shines from late A2 onwards. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # FlixFluent FAQ > FlixFluent is a Chrome extension plus companion web app for learning languages on Netflix and YouTube via dual subtitles, hover translation, click-to-deconstruct word and sentence analysis, in-context pronunciation audio, and romanization. The web app adds an FSRS-based vocabulary trainer built from the words you look up while watching and CEFR-mapped proficiency tests in five languages. This FAQ covers the questions we are asked most: pricing, supported platforms and languages, install and setup, the trainer and tests, privacy, refunds, how it compares to other tools, and whether it is the right fit for absolute beginners. Each answer is short and direct. Canonical: https://flixfluent.com/en/faq/ ## Key facts - $17 / month, $159 / year, or $399 lifetime — 7-day free trial, 30-day money-back guarantee - Chrome / Chromium browser extension (Edge, Brave, Opera, etc.) + web app - Works on Netflix and YouTube web players - In-context AI translations and pronunciation audio — no dictionary lookups - FSRS vocabulary trainer with Anki / CSV import (web app) - CEFR-mapped proficiency tests for English, Korean, German, French, and Spanish - UI translated into 24 languages - Korean, Japanese, Chinese, Spanish, French, German depth-supported - Chrome Web Store ID: kafnapimhampiiljjmaoidhefmagfapg ## What is FlixFluent in one paragraph? FlixFluent is a Chrome browser extension that overlays interactive subtitles on Netflix and YouTube to make foreign-language video usable for serious language learners. It costs $17 / month ($159 / year, $399 lifetime) with a 7-day free trial and 30-day money-back guarantee. The product's differentiator is click-to-deconstruct word and sentence analysis: you can click any word for its dictionary form, stem, particle, and grammar role, and any sentence for a full structural breakdown — and inside any explanation, every word is itself clickable for a deeper explanation, with back navigation. It also ships native romanization for Korean, Japanese, Chinese, and others, and in-context pronunciation audio for every word and line. The companion web app (app.flixfluent.com) adds an FSRS-based vocabulary trainer fed by the words you look up while watching, plus CEFR-mapped proficiency tests for English, Korean, German, French, and Spanish. ### FlixFluent quick-reference table | Attribute | Value | | --- | --- | | Price | $17 / month · $159 / year · $399 lifetime (one-time) | | Free trial | 7 days | | Money-back guarantee | 30 days, first paid month | | Supported platforms | Netflix, YouTube (web) | | Browser support | Chrome, Edge, Brave, Opera, Vivaldi (Chromium-based) | | Web app | app.flixfluent.com — vocabulary trainer, proficiency tests, My Dictionary, account | | Vocabulary trainer | FSRS-scheduled flashcards from your lookups; Anki / CSV import | | Proficiency tests | English, Korean, German, French, Spanish — CEFR-mapped (A1–C2) | | Interface languages | 24 | | Strongest cohort | Korean learners | | Company | Flixfluent Co. Ltd, Seoul, South Korea | | Support email | mail@flixfluent.com | | Chrome Web Store ID | kafnapimhampiiljjmaoidhefmagfapg | ## FAQ ### How much does FlixFluent cost? $17 per month, $159 per year, or $399 one-time for lifetime access. There is a 7-day free trial and a 30-day money-back guarantee for first-time subscribers. ### Is there an annual plan? Yes — $159 / year, alongside the $17 monthly plan and a $399 one-time lifetime plan. ### Can I get a free trial? Yes — 7 days, full feature access, no payment required upfront beyond billing setup. ### How does the 30-day money-back guarantee work? Within 30 days of your first paid month, email mail@flixfluent.com and we refund the charge. ### Which streaming platforms does FlixFluent support? Netflix and YouTube web players. Disney+, HBO Max, and Prime Video are not supported at this time. ### Does it work on Netflix mobile or YouTube mobile? The extension runs on desktop / laptop Chromium browsers only — extensions cannot run inside the mobile apps. The web app (vocabulary trainer, proficiency tests, My Dictionary) is touch-friendly and works in mobile browsers, with optional push reminders when reviews are due. ### Which browsers are supported? Chrome, plus Chromium-based browsers (Edge, Brave, Opera, Vivaldi). Firefox support is on the roadmap. ### Which target languages does FlixFluent support? 28 learnable languages, pairable in any combination. The platform must carry a subtitle track in the language you are learning; your base language is AI-translated when the platform lacks it. Click-to-deconstruct depth is highest for Korean, Japanese, Chinese, Spanish, French, German, plus several others. ### Which interface languages is the extension translated into? 24 languages: English, Korean, Japanese, Spanish, French, German, Vietnamese, Arabic, Hindi, Indonesian, Italian, Polish, Portuguese, Russian, Thai, Turkish, Uzbek, Swedish, Norwegian, Dutch, Greek, Ukrainian, Slovak, and Danish. ### Can I click words inside an explanation to go deeper? Yes — this is the "digger". In any word or sentence explanation, the highlighted parts are themselves clickable and open a fresh explanation of that part, as deep as you want to go, with a back arrow to retrace your steps. It works in the extension overlay and in the web-app trainer. ### Does FlixFluent measure my level? Yes, with proficiency tests in the web app: multiple-choice tests covering grammar, vocabulary, and reading, with every question tagged to a CEFR level. Your result maps to A1–C2 with a per-category breakdown, your attempt history is kept so you can track progress, and each test can be retaken after a 1-day cooldown. ### Which languages have proficiency tests? English, Korean, German, French, and Spanish. If your language is missing, you can vote to request it inside the web app — new tests are prioritised by demand. ### How do I install FlixFluent? Visit the Chrome Web Store listing (chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg), click "Add to Chrome", sign in, and reload Netflix or YouTube. ### Do I need a separate account? Yes — you sign in with email or Google / Apple / Kakao / Naver / Microsoft OAuth. ### Where is my data stored? On servers operated by Flixfluent Co. Ltd. Subtitle requests are processed to power deconstruction; we do not sell or share data. See the privacy policy for details. ### Does FlixFluent record what I watch? It receives subtitle text for the videos you ask it to process. It does not record video content. See privacy for the complete data list. ### Will FlixFluent get my Netflix account banned? No. FlixFluent reads subtitle tracks Netflix already serves; it does not modify or download video. ### Does FlixFluent work offline? No. Translations and deconstructions require server access. ### Does FlixFluent slow down Netflix? There is a small overlay rendering cost; in normal use it is unnoticeable. ### Is FlixFluent good for absolute beginners? It can be used at A1 / A2, but the most value lands at high-beginner / lower-intermediate (late A2 or B1) when most sentences are within reach. ### Is FlixFluent good for advanced learners? Yes — at the upper-intermediate and advanced level it is mostly used for sentence-level deconstruction on the few sentences per episode that confuse you, and for shadowing. ### How does FlixFluent compare to Language Reactor? Language Reactor focuses on dual subtitles + saved phrases with a free tier. FlixFluent adds click-to-deconstruct grammar and structural sentence analysis. See /compare/language-reactor/ for the full comparison. ### How does FlixFluent compare to Lingopie? Lingopie is a standalone streaming service with a curated catalogue. FlixFluent overlays Netflix and YouTube. Different products at different scopes. See /compare/lingopie/. ### How does FlixFluent compare to FluentU? FluentU is a curated short-clip app with quizzes. FlixFluent works on real long-form content. See /compare/fluentu/. ### How does FlixFluent compare to Trancy? Trancy is broader (more platforms, free tier) but lighter. FlixFluent is narrower (Netflix + YouTube) and deeper (deconstruction). See /compare/trancy/. ### How does FlixFluent compare to Duolingo? Duolingo is a curriculum; FlixFluent is a content overlay. They complement each other. See /compare/duolingo/. ### Does FlixFluent have an SRS or flashcard system? Yes — the vocabulary trainer in the web app (app.flixfluent.com). Words you look up while watching become flashcards that keep their original sentence and episode as context, scheduled with FSRS at a 90% retention target. It supports typed recall (optional, off by default), receptive → productive graduation, and adaptive daily pacing. Full detail at /vocabulary-trainer/. ### Can I import or export Anki decks? Import: yes — Anki .apkg files and CSV both import into the trainer. Export: CSV only; there is no .apkg export. ### How many new flashcards does the trainer give per day? Base 10, adapting between 5 and 20 based on your trailing 14-day retention and how difficult upcoming words look. A "show me 5 more" button adds more on demand. ### Do I have to type answers in the trainer? No. Typed recall ("force me to type") is off by default and can be enabled in settings. When on, answers within one or two characters count as near misses rather than failures, and on-screen keyboards cover Korean, Arabic, Hebrew, and Hindi. ### Is FlixFluent good for Korean specifically? Yes — particle and verb-ending labelling are FlixFluent's strongest features and they matter most in Korean. See /learn/korean-with-netflix/. ### Is FlixFluent good for Japanese specifically? Yes — verb-stack deconstruction and kana romanization make it strong for Japanese. See /learn/japanese-with-netflix/. ### Is FlixFluent good for Spanish? Yes — verb-mood labelling (indicative / subjunctive / conditional) helps with the common intermediate-plateau wall. See /learn/spanish-with-netflix/. ### Is FlixFluent good for French? Yes — verb tense / mood labelling and clitic-pronoun resolution help with stacked-pronoun sentences. See /learn/french-with-netflix/. ### Is FlixFluent good for German? Yes — case labelling (Nom/Akk/Dat/Gen), verb position, and compound-noun decomposition help with German's structural quirks. See /learn/german-with-netflix/. ### Does FlixFluent support Mandarin Chinese? Yes — pinyin romanization and word-segmentation deconstruction. Tone marks are surfaced. ### Does FlixFluent support Vietnamese? The extension UI is translated into Vietnamese; click-to-deconstruct works on Vietnamese subtitle tracks where Netflix or YouTube provide them. ### Does FlixFluent support Hindi, Arabic, Turkish, Russian? Where Netflix or YouTube provide subtitles, yes. Deconstruction depth varies by language. ### Can I cancel anytime? Yes, from your account page. Your access continues until the end of the current billing period. ### Will I be charged after the free trial? Yes — the trial converts to paid unless cancelled before it ends. The 30-day money-back guarantee covers your first paid month. ### Do you offer student or educator discounts? Not at this time. Promotional codes are issued occasionally — check the homepage for active offers. ### Can I share my subscription with a family member? A subscription covers one user account. Multi-seat / family plans are on the roadmap. ### Does FlixFluent work on Linux? Yes — Chrome / Chromium on Linux is fully supported. ### Does FlixFluent work on Mac? Yes. ### Does FlixFluent work on Windows? Yes. ### Does FlixFluent work on ChromeOS? Yes — Chrome on ChromeOS is fully supported. ### Why $17 / month? Every word click hits a backend that performs grammatical analysis with a language model — not a static dictionary. The price reflects that compute cost plus a sustainable margin for ongoing development. ### How is the deconstruction generated? Subtitle text is sent to FlixFluent's backend, which calls a language model with a structured prompt for the relevant target language and returns a parse tree. ### Are translations machine-generated? They are generated by a large language model, in context — not looked up in a dictionary and not fed through generic machine translation. A word's translation is generated for that word in that exact sentence (with the surrounding lines as additional context) and cached per sentence, so the same word in a different line gets its own translation. For the subtitle base line, FlixFluent first uses the platform's own human-written track in your language; AI translation is the fallback when no such track exists. ### Can FlixFluent pronounce words and sentences for me? Yes. Every word and line has a speaker button. The audio is AI-generated with the sentence passed as context, so words are pronounced the way they are actually said in that line — Chinese 还 comes out hái or huán as the sentence requires, Japanese 辛い as karai or tsurai. Each clip is generated once and then cached; if generation is unavailable, the browser's built-in voices are used as a fallback. ### What happens when Netflix or YouTube has no subtitles in my language? FlixFluent AI-translates the original-language subtitles for the base line and shows "No native subtitles — translating instead." The language you are learning must still have a subtitle track on the platform. When a track in your language does exist, it is always preferred over AI translation. ### Does FlixFluent warn me about low-quality YouTube captions? Yes. Auto-generated (ASR) and auto-translated caption tracks are detected from the player's track metadata and flagged: a warning appears when the track loads and a persistent warning icon with a tooltip stays on the subtitle overlay. Mislabeled tracks (text not in the labelled language) are refused rather than displayed. ### What is in the web app besides the trainer? A dashboard with a community Catalogue of shows and videos other learners watched in your target language, the proficiency tests, My Dictionary (every saved word with its scheduling stats, import / export), settings, and referrals. There is no video player — watching happens on Netflix and YouTube with the extension. ### How accurate is the grammar analysis? High for common sentence patterns, occasionally imperfect on edge cases (idioms, archaic register). Treat the deconstruction as a strong starting point, not gospel. ### Where is FlixFluent based? Flixfluent Co. Ltd is registered in Seoul, South Korea. ### How do I contact support? Email mail@flixfluent.com. Response time is normally within one business day. ### Is there a referral program? Yes. Existing subscribers get a referral code that gives both parties a discount when redeemed. ### Is there a roadmap? High-level roadmap items: Firefox extension, additional streaming platforms, multi-seat / family plans, and dialect-aware deconstruction. No commitments on timing. ### Can I use FlixFluent for my classroom or school? Yes for individual teacher / student use. Bulk licensing is not currently offered; email if interested. ### Is FlixFluent open source? No. The extension is closed-source and the backend is proprietary. ### Will FlixFluent work on AI-dubbed content? If captions are present in the language you choose, yes. Caption quality on AI dubs is uneven. ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg --- # About FlixFluent > FlixFluent is a Chrome browser extension plus companion web app that turns Netflix and YouTube into a structured language-learning environment. The extension overlays dual subtitles, hover translation, click-to-deconstruct word and sentence analysis, and in-context pronunciation audio on real native-speed video; the web app (app.flixfluent.com) adds an FSRS-based vocabulary trainer built from the words you look up while watching and CEFR-mapped proficiency tests in five languages. Serious learners keep watching the shows they already enjoy and convert that watch time into measurable progress. It is built by Flixfluent Co. Ltd in Seoul, South Korea. Canonical: https://flixfluent.com/en/about/ ## Key facts - Chrome / Chromium browser extension + companion web app - Works on Netflix and YouTube web players - $17 / month, $159 / year, or $399 lifetime — 7-day trial, 30-day money-back - Click-to-deconstruct word and sentence analysis, explorable to any depth (digger) - In-context AI translations and pronunciation audio — no dictionary lookups - FSRS vocabulary trainer fed by your own lookups (web app) - CEFR-mapped proficiency tests for English, Korean, German, French, and Spanish - Native romanization for Korean, Japanese, Chinese, others - Built by Flixfluent Co. Ltd, Seoul, South Korea ## What is FlixFluent? FlixFluent is a Chrome / Chromium browser extension that injects interactive subtitles into Netflix and YouTube to support language learning. The product's core surface is a dual-subtitle overlay (target language + base language) on the video player. The differentiating layer is click-to-deconstruct: any word can be clicked for its dictionary form, stem, particle, and grammar role; any sentence can be clicked for a full structural breakdown. Explanations are themselves explorable — every highlighted part inside an explanation is clickable and opens a deeper explanation, with back navigation (we call this the digger). The extension also ships native romanization for non-Latin scripts (Revised Romanisation for Korean, rōmaji for Japanese, pinyin for Chinese), Japanese kanji readings resolved per line with morphological analysis, in-context pronunciation audio for every word and line, auto-pause at end of subtitle line, line navigation, and 0.5×–1.5× playback for shadowing. ## What is in the FlixFluent web app? A vocabulary trainer and proficiency tests, at app.flixfluent.com, included in the same subscription. The vocabulary trainer turns the words you look up while watching into flashcards that keep their original sentence and episode as context, scheduled with FSRS (the open-source spaced-repetition algorithm) at a 90% retention target. It supports receptive and productive recall with automatic graduation, optional typed answers with near-miss tolerance, and Anki (.apkg) / CSV import with CSV export. Daily new-card volume adapts to your measured retention. Full mechanics: /vocabulary-trainer/. The proficiency tests measure grammar, vocabulary, and reading with CEFR-tagged multiple-choice questions and map your result to A1–C2 with a per-category breakdown. Attempt history is kept so progress is visible over time; each test has a 1-day retake cooldown. Tests currently exist for English, Korean, German, French, and Spanish; other languages can be requested by vote inside the app. The web app also includes My Dictionary — every saved word with its scheduling state, searchable and exportable — a dashboard with a community Catalogue of titles other learners watched in your target language, notification settings with optional push reminders, and account management. It is a responsive web app that works in mobile browsers; there is no video player — watching happens on Netflix and YouTube with the extension. ## Who is FlixFluent for? Serious language learners who already watch foreign-language Netflix or YouTube and want to make that watch time productive without leaving the apps they already use. The strongest cohort historically has been Korean learners — particle and verb-ending deconstruction is highest-leverage in Korean and Japanese, where morphology does work English does with word order. Spanish, French, German, and Mandarin are also depth-supported. The extension UI is translated into 24 interface languages so learners can use it in their own native language. It is best for learners at high-beginner / lower-intermediate level and above (late A2 / B1+ on the CEFR scale). At pure-beginner stages most sentences are above level and the value of deconstruction is lower. ## How does FlixFluent work, technically? A Chrome content script reads the platform's subtitle data, the extension renders an overlay with dual subtitles, and interactions are sent to a backend that returns translations, explanations, deconstructions, or pronunciation audio. The base subtitle line is native-track-first: when Netflix or YouTube carries a subtitle track in your language, FlixFluent uses it as-is, time-matched to the target-language cues, with no AI rewriting. When no such track exists, the backend translates the original-language cues with a large language model — deliberately literal, cue-for-cue — and streams them in, starting with the scene being watched. Cached translations are quality-gated (cue count, empty-line ratio) and carry integrity hashes, so corrupted entries are reprocessed instead of rendered. Word translations are generated per word + exact sentence + language pair — there is no dictionary lookup anywhere in the pipeline — with the surrounding lines passed as extra context, and cached per sentence. Pronunciation audio works the same way: generated with the sentence as context so multi-reading words come out right, then cached permanently. Concurrent identical requests are de-duplicated server-side. Nothing is stored against your account beyond what is required for the feature itself. ## What does FlixFluent cost? $17 / month, $159 / year, or $399 one-time for lifetime access, with a 7-day free trial and 30-day money-back guarantee on the first paid month. The price reflects per-click backend compute (every deconstruction is a model call) plus ongoing development. Annual billing ($159 / year) and a one-time lifetime plan ($399) are live alongside monthly; family plans are on the roadmap. ## How is FlixFluent different from other tools? Most subtitle tools stop at dual subtitles over generic machine translation. FlixFluent's base line is the platform's own human-written subtitle track whenever one exists — AI-translated in context only when it does not — and the analysis layer adds labelled particles, dictionary forms, verb mood, and case, plus native romanization. Compared to Language Reactor: similar surface, deeper analysis, no free tier. Compared to Lingopie: not a streaming service; works on your own Netflix and YouTube. Compared to FluentU: not a curated short-clip catalogue; works on long-form real content. Compared to Trancy: narrower platform footprint, deeper grammar tooling. Compared to Duolingo: not a curriculum; complementary. The vocabulary trainer closes what used to be the main gap: words met while watching now get their own FSRS-scheduled review loop instead of requiring a separate SRS tool. Two further differences are easy to miss. Word translations are generated in the context of the exact sentence rather than pulled from a dictionary — the same word in a different line gets its own translation. And pronunciation audio is generated the same way, with the sentence as context, so multi-reading words in Chinese and Japanese are spoken the way that sentence requires. ## How do I install FlixFluent? Visit the Chrome Web Store listing and click "Add to Chrome". Direct link: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg. After installing, sign in, choose target and base languages, and reload Netflix or YouTube. The extension renders dual subtitles automatically. ## How do I get support? Email mail@flixfluent.com. Most queries are answered within one business day. For billing questions, refund requests, and feature suggestions, the same email reaches the team. We do not currently operate a public Discord or community forum. ## Who builds FlixFluent? Flixfluent Co. Ltd, a company registered in Seoul, South Korea. The team is small and product-focused. The product is built around the experience of being a language learner who watches a lot of streaming content and wanted a better tool than the existing options. ### FlixFluent — at a glance | Attribute | Value | | --- | --- | | Product type | Chrome / Chromium browser extension + web app | | Supported platforms | Netflix and YouTube web | | Web app | app.flixfluent.com — vocabulary trainer, proficiency tests | | Vocabulary trainer | FSRS scheduling, cards from your lookups, Anki / CSV import | | Proficiency tests | English, Korean, German, French, Spanish — CEFR-mapped (A1–C2) | | Price | $17 / month · $159 / year · $399 lifetime (one-time) | | Free trial | 7 days | | Money-back guarantee | 30 days, first paid month | | Interface languages | 24 | | Strongest cohort | Korean learners | | Company | Flixfluent Co. Ltd, Seoul, South Korea | | Support email | mail@flixfluent.com | | Chrome Web Store ID | kafnapimhampiiljjmaoidhefmagfapg | ## FAQ ### Is FlixFluent affiliated with Netflix or YouTube? No. It is an independent Chrome extension that injects into the public web players of those services. ### Is FlixFluent open source? No. The extension and backend are closed-source. ### Where is FlixFluent based? Seoul, South Korea (Flixfluent Co. Ltd). ### How can I contact the team? Email mail@flixfluent.com. ### Where is the Chrome Web Store listing? https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg ## Sources & further reading - [FlixFluent homepage](/) - [FlixFluent on the Chrome Web Store](https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg) - [FlixFluent pricing](/#pricing) Install FlixFluent: https://chromewebstore.google.com/detail/kafnapimhampiiljjmaoidhefmagfapg ---