Language Reactor - Linglass

Language Reactor - Linglass

Learn English & More by Video

9 ratings
2 reviews
Free
In-App Purchases

Details

Released
July 6, 2026
Updated
November 2, 2026

Features

Language Reactor - Linglass screenshot #1 for iPhone
Language Reactor - Linglass screenshot #2 for iPhone
Language Reactor - Linglass screenshot #3 for iPhone
Language Reactor - Linglass screenshot #4 for iPhone
Language Reactor - Linglass screenshot #5 for iPhone
Language Reactor - Linglass screenshot #6 for iPhone
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About

Learn languages by watching videos with dual subtitles and instant contextual translations. Save new words and review them with smart flashcards using spaced repetition. Get AI-powered grammar explanations for better understanding.

✓Dual subtitles on YouTube
✓Contextual word translation and pronunciation
✓AI grammar explanations with CEFR levels
✓Spaced repetition flashcards
✓Progress tracking with stats and heatmap
✓Support for multiple languages
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What's New in Language Reactor

1.5.0

November 2, 2026

Word highlighting in subtitles Your words now stand out while you watch. Words you've saved, words you've translated and words from the level you choose (CEFR, JLPT, HSK or TOPIK) are marked right in the subtitles, so you notice them every time they come back. Choose the colors and how words are marked in Settings → Video subtitles → Word highlighting. Also in this update: bug fixes and stability improvements.

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Subscriptions & In-App Purchases

Premium (Annual)

Unlimited translations, words & AI grammar

$59.991 Year
3 Days trial
How to cancel Language Reactor subscription ⁉️

User reviews

영상으로 언어 공부할 때 쓰는 최고의 앱!

기존에 유명했던 랭귀지리액터는 알고 있었는데 기능은 좋아도 인터페이스가 쓰기 불편하고 복잡한 느낌이 있어 갈아타려고 다른 걸 알아보다가 이 앱을 발견하게 됐어요. 결론적으로 아주 만족하며 쓰고 있습니다. 유튜브나 넷플 보면서 이중자막으로 편하게 볼 수 있고 모르는 단어 누르면 뜻과 함께 AI 설명도 볼 수 있어요. 제일 맘에 드는 부분은 바로 플래쉬카드로 복습할 수 있어서 안키에 따로 안 넣어도 돼서 편리해요. 무엇보다 디자인이 깔끔해서 눈이 편하고 군더더기 없이 너무 좋습니다. 아직 초기라 기능상 아쉬운 부분이 살짝 있지만 피드백 요청 드리면 빠르게 대응해주셔서 앞으로 더 좋은 앱이 될 거라 생각합니다. 언어학습자분들께 추천합니다!
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Response from developer

따뜻한 리뷰 감사합니다! 버그나 제안 사항이 있으시면 언제든 support@linglass.app 로 알려주세요.

Amazing app

I’ve been learning the Korean language for a year in a half and I love using LinGlass for learning Korean in real time. Thank you!

Response from developer

Hello, thank you so much for your feedback! I appreciate it! If you run into any issues or you have some suggestions — feel free to email us support@linglass.app.

Developer apps

FAQ

What languages can I learn with Language Reactor?

Language Reactor supports learning English, Spanish, French, German, Italian, Portuguese, Russian, Japanese, Korean, and Chinese. The interface is available in 20 different languages.

How does Language Reactor's spaced repetition work?

Language Reactor uses the FSRS algorithm for its smart flashcards. It schedules reviews of saved words right before you're likely to forget them, incorporating the original video context for better recall.

What are the limits of the free version of Language Reactor?

The free version of Language Reactor offers 15 translations per day, allows you to save up to 50 words, and provides AI grammar explanations monthly. Premium removes these limitations.

How does Language Reactor compare to traditional language learning methods?

Language Reactor integrates learning into enjoyable video content, making it feel less like studying. It offers contextual translations and AI grammar explanations that go beyond simple dictionary lookups.

Is Language Reactor suitable for beginners?

Yes, Language Reactor is designed to make language learning natural and accessible. The dual subtitles and contextual translations help learners understand content even at earlier stages.

Can I use Language Reactor offline?

Language Reactor relies on streaming YouTube videos, so an internet connection is required for its core functionality. Offline use is not supported.

What is the pricing for Language Reactor Premium?

Language Reactor Premium is available through a monthly subscription for $7.99 or an annual subscription for $59.99. The annual plan includes a 3-day free trial.

How often is Language Reactor updated?

Language Reactor was last updated on November 2, 2026, with version 1.5.0. This indicates a relatively active development cycle for the application.