Coco vs Language Reactor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Coco
Learn Mandarin Chinese through engaging stories tailored to your skill level. Access interactive tools for word meanings, pinyin, and grammar, alongside native audio for listening and speaking practice. Track your progress with quizzes and flashcards.
- Illustrated stories graded by level
- Tap-to-translate word meanings and pinyin
- Native speaker audio with slow mode
- SRS flashcards for vocabulary review
- HSK curriculum alignment
- Offline reading capability
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Learn Chinese with stories written by a real native teacher. 200+ illustrated stories, 73 levels, from your first words to HSK 6. Every Coco story is written by Yaxuan, a native Chinese teacher, and graded to your level. You read real Chinese from day one, with the tools to understand every word. READ WITH HELP ON EVERY PAGE - Tap any word for its meaning, pinyin, tones and example sentences - Translate the whole page in one tap - Turn pinyin and tone colors on or off as you improve - Grammar explained right inside the story LISTEN AND SPEAK - Native Beijing-accent audio for every story - Slow mode for beginners - Shadowing practice for pronunciation, tones and rhythm REMEMBER WHAT YOU READ - Save words while you read - Review them with SRS flashcards made from your own stories - Quizzes after every story: characters, pinyin, tones, listening, speaking, translation A REAL CURRICULUM - HSK 1 to HSK 6, level by level, in the right order - Real Chinese news adapted to your level - Offline reading - XP, streaks and badges to keep you going Rated 4.9 by learners. Download Coco Chinese and read your way to fluency. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Language Reactor
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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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
Screenshots
Verdict
The clearest difference is ads: Language Reactor at none against Coco's shown. Language Reactor also leads on update cadence (every 4 days vs fortnightly). On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Coco sells 5 in-app purchases, starting at $14.99 per month and Language Reactor sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Coco against 4.9 for Language Reactor. Both are backed by a comparable volume of ratings — 6 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Coco ships an update fortnightly, Language Reactor every 4 days. Both last shipped on November 13, 2026.
| Parameter | Coco | Language Reactor |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 4.9 (9 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 6 | 9 — better |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 113 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeremy Pitault | Ilia Furtaev |
Customer experience
Coco
Language Reactor
In-app purchases
Coco
- Monthly Premium Subscription$14.991 Month
- Yearly Premium Subscription$33.991 Year
- Yearly Premium Subscription$45.991 Year
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- Yearly Premium Subscription$47.991 Year
- Yearly Premium Subscription$99.991 Year
Language Reactor
- Premium (Monthly)$7.991 Month
- Premium (Annual)3 Days trial$59.991 Year









