Math.Jr vs Cyber Kanji
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Math.Jr
This app assists educators and parents in verifying math homework by scanning problems and providing AI-generated answers with over 90% accuracy. It also generates custom arithmetic exercises for children and maintains a record of reviewed problems for practice.
- Scan math problems with camera or image upload
- AI-generated reference answers with >90% accuracy
- Generate custom arithmetic exercises
- Adjustable difficulty levels for exercises
- Save exercises for offline practice or printing
- Record and review past homework problems
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Math Junior is user friendly and easy to use. It helps teachers and parents to check math problems and is able to display reference answers provided by AI technology, validation accuracy is above 90%. Features: - Scan and inspect math homework: Teachers and parents can scan math problems using camera or by uploading images from Photo Library, Math Junior checks every equations and provide answers immediately. - Generate arithmetic exercises for your children: Teachers or parents can adjust various levels of difficulties and generate a set of exercises for kids. Math Junior supports online tests or you can also save the exercise to album, print and practice it later. - Keep math homework on record: Math Junior is able to keep all inspected math questions in a list, for you and your kids to review and practice.
Cyber Kanji
Learn Japanese kanji with a simplified approach focusing on visual recognition, pronunciation, and meaning. Engage in timed challenges or a relaxed study mode, with a unique, humorous sensei guiding your progress. Track your learning and compete globally.
- Simplified kanji learning
- Pronunciation and meaning focus
- Timed game mode with techno music
- Study mode with flashcards
- Global leaderboard
- Progress tracking
- Customizable settings
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Ever notice that kanji apps are SUPER complicated? Radicals. Kun'yomi. On'yomi. Paragraphs and paragraphs of text. For beginners and intermediate learners, it's a bit too much! Cyber Kanji keeps it simple: see a kanji, hear a pronunciation, learn a meaning. Study in zen mode or race against the clock with techno music. Be warned: A snarky Japanese-speaking sensei insults you mercilessly while you learn. がんばって! GAME MODE • Jam out to techno music while you race the clock. • Gain more time with each correct answer and each game played. • Claim your spot on the Worldwide Leaderboard, ranked by Highest Scores and Longest Streaks! STUDY MODE • Tap the kanji card to hear its pronunciation. Tap again to reveal the kana and translation. • Star the words you've learned, shuffle the deck, and filter by level. • Pro tip: tap the translation for extra definitions, example sentences, and related kanji from the online Jishoo dictionary. AND MORE • Game stats to track your progress over time. • Lots of customizable settings: Light Mode / Dark Mode, Fonts, Sensei Mood, Haptic Feedback, and more. • Optional: Sign in to save progress and sync across devices. Made with love. Cyber Kanji has zero ads and will always be 100% free. (The only thing you can buy is a blinged-out キラキラ version of the in-game logo. Completely optional, but looks cool!) Learn your first 10 kanji today — your future self in Tokyo will thank you. P.S. While you're learning the kanji, come learn the kana and how to type on the Japanese 12-key flick keyboard with our sister app, Cyber Kana!
Screenshots
Verdict
The clearest difference is ads: Cyber Kanji at none against Math.Jr's shown. Math.Jr's advantage is iOS requirement (10.0 vs 15.0). 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. Math.Jr sells 1 one-off in-app purchase and Cyber Kanji sells 1 one-off in-app purchase. 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 Math.Jr against 5.0 for Cyber Kanji. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Math.Jr ships an update every 9 days, Cyber Kanji weekly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Math.Jr | Cyber Kanji |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 9 days | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 83 MB | 196 MB |
| Age rating | 4+ | 4+ |
| Developer | Hangzhou Lishi Technology Co., Ltd. | deLily Apps, Inc. |
Customer experience
Math.Jr
Cyber Kanji
In-app purchases
Math.Jr
- Unlock Math Junior$1.99
Cyber Kanji
- Gold Logo$4.99









