# Language Reactor - Linglass — Learn English & More by Video > Learn English & More by Video (iPhone/iPad app by Ilia Furtaev.) - Source: https://appshunter.io/ios/app/language-reactor-linglass/id6777002920 (this page in markdown: same URL + `.md`) - Developer: [Ilia Furtaev](https://appshunter.io/developer/6777002922) - Category: Education - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 16.4 · 52 MB - Languages: American English - Released: 2026-07-06 - Data updated: 2026-09-07 - User reviews in markdown: https://appshunter.io/ios/app/language-reactor-linglass/id6777002920/reviews.md ## What is Language Reactor? Linglass turns YouTube into the most natural way to learn a language — watch what you love, with dual subtitles, and pick up words without it ever feeling like studying. Tap any word in the subtitles to see what it means in context (not just a dictionary definition), hear it pronounced by a native voice, and save it with one tap. Every saved word comes back at the perfect moment with spaced-repetition flashcards, so it sticks. DUAL SUBTITLES ON YOUTUBE Watch any YouTube video with subtitles in your target language and your own, side by side. Tap a word for an instant, context-aware translation. CONTEXTUAL TRANSLATION + PRONUNCIATION Get the meaning that fits the sentence, with phonetic transcription and native-voice audio. Built for understanding, not just lookups. AI GRAMMAR EXPLANATION Select a sentence and get a clear, structured breakdown of the grammar — each construction labelled with its CEFR / JLPT / HSK / TOPIK level, in your own language. SMART FLASHCARDS (SPACED REPETITION) Review saved words with the real video context — the sentence and the frame they came from. The FSRS algorithm schedules each card right before you'd forget it. TRACK YOUR PROGRESS Streaks, a review heatmap and clear stats keep you coming back. LEARN: English, Spanish, French, German, Italian, Portuguese, Russian, Japanese, Korean and Chinese — with the interface in 20 languages. FREE TO USE: 15 translations a day, 50 saved words, and AI grammar explanations every month. PREMIUM removes the limits — unlimited translations, unlimited saved words and far more AI grammar. Watch. Click. Translate. Remember. linglass.app · support@linglass.app Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://linglass.app/privacy ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Premium (Monthly) | $7.99 | per month | | Premium (Annual) | $59.99 | per year | ## Version history (last 5 releases) ### 1.2.3 — 2026-09-03 Fullscreen, with both subtitle lines Turn your phone and the video fills the screen — with both subtitle lines still there. Tap any word to translate it, double-tap the left or right edge to jump back or forward one line, swipe down to come back. Arabic subtitles now read right to left. Plus a handful of smaller fixes. Thanks for learning with Linglass! ### 1.2.2 — 2026-08-30 Fixes and refinements A maintenance update. For Chinese and Portuguese, the app now keeps the exact variant you chose — in the subtitles and in the interface itself. The loading banner over the player can be dismissed. Plus a handful of smaller fixes throughout. Thanks for learning with Linglass! ### 1.2.1 — 2026-08-28 Fixes and polish Nothing new to tap this time — this one is maintenance. We fixed a handful of bugs, tidied up some rough edges under the hood, and made the very first run smoother for new learners. Thanks for learning with Linglass! ### 1.2.0 — 2026-08-22 Word meanings, not just the one from the sentence Tap a word in the subtitles and you now also see its dictionary meanings, not only the one that fits that sentence — and each of them can be saved as its own card, in its dictionary form. Words in English, Japanese and Chinese show their level too. Along the way we fixed several bugs, including one where removing a saved word took an extra tap. Thanks for learning with Linglass! ### 1.1.6 — 2026-08-21 Subtitles start right away When a video has no subtitles, Linglass makes them for you — and now they start appearing while the rest is still being prepared, instead of after a long wait. Longer videos stay in sync to the very end. We also polished a number of details and fixed several bugs. Thanks for learning with Linglass! ## Related topics [amethyst scene](https://appshunter.io/ios/topics/amethyst-scene) · [buffermind](https://appshunter.io/ios/topics/buffermind) · [lingopietv](https://appshunter.io/ios/topics/lingopietv) · [taaly](https://appshunter.io/ios/topics/taaly) · [переводчик китайский](https://appshunter.io/ios/topics/переводчик-китайский) · [reactor](https://appshunter.io/ios/topics/reactor) · [dual subtitles for youtube](https://appshunter.io/ios/topics/dual-subtitles-for-youtube) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*