Zenzu vs ClaviSay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zenzu
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Zenzu transforms the way you learn languages. Instead of artificial exercises and gamified drills, you learn from real-world content — YouTube videos, articles, and photos from your daily life. HOW IT WORKS Import any content you find interesting — a YouTube video, a news article, or even a photo with text. Zenzu's AI breaks it down into meaningful vocabulary and phrases, creating personalized learning material just for you. SMART SPACED REPETITION Powered by the FSRS-5 algorithm, Zenzu schedules your reviews at the optimal moment — right before you'd forget. Every review session is efficient and builds lasting knowledge. LEARN YOUR WAY • Import YouTube videos with subtitles and learn from real conversations • Snap photos of menus, signs, or book pages to capture new vocabulary • Import articles and let AI extract key words and phrases • Review with intelligent spaced repetition that adapts to your memory BUILD YOUR FUTURE, STEP BY STEP Zenzu is not a game. It's a serious tool for people who want real language skills. Every deck you create is a tree in your personal grove — watch your knowledge forest grow as you progress. FEATURES • AI-powered content import (YouTube, articles, photos) • FSRS-5 spaced repetition algorithm • Beautiful forest-themed progress visualization • Works offline after content is imported • Support for any language pair
ClaviSay
Improve your English by reading real-world content and practicing with a personalized AI agent. Save new words and phrases, then engage in focused AI-powered exercises based on your learning history. Receive AI feedback to enhance your own English expressions.
- Read English articles with AI assistance
- Save vocabulary and expressions
- Personalized AI practice sessions
- AI feedback on English expressions
- Review mistakes and learning items
- Build a personal learning memory
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Learn English from real content. Save words, phrases, and sentences from what you read. Turn them into personalized AI Practice with your own learning agent. ClaviSay helps you improve English through real-world reading, vocabulary review, and short AI-powered practice sessions. Instead of studying from generic lessons, you can practice with the English content you actually read. Import or read articles, save useful expressions, and let your AI agent create focused exercises from your learning history. Key features: - Read English articles with AI assistance - Understand words, phrases, and sentences in context - Save vocabulary, expressions, and useful sentences - Practice vocabulary recall and phrase usage - Improve your own English expressions with AI feedback - Review mistakes and save learning items - Build a personal learning memory with your AI agent ClaviSay is designed for learners who want to improve English through real reading, daily practice, and practical expression. AI-generated explanations and feedback are provided for language learning support and may not always be perfect.
Screenshots
Verdict
The clearest difference is iOS requirement: ClaviSay at 13.0 against Zenzu's 15.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Zenzu ships an update every 4 days, ClaviSay weekly. The most recent releases landed on October 28, 2026 and October 21, 2026 respectively.
| Parameter | Zenzu | ClaviSay |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 76 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Nick Bibikov | 松 颜 |
In-app purchases
Zenzu
No in-app purchases
ClaviSay
No in-app purchases









