KumiOu
Trung Luong Education iPhoneiPadiPod touch
KumiOu is a free Education app for iPhone and iPad by Trung Luong. Requires iOS 18.6. Updated October 1, 2026.
- Price
- Free
- on the App Store
- Size
- 593 MB
- Age 17+
- Updated
- Oct 1
- 2026 · v1.0
Screenshots
About KumiOu
KumiOu is a Japanese learning companion built around the things you actually want to read. Import a manga page, tap a speech bubble, and see it recognized and translated on the spot — then turn any word you meet into something you'll remember. Read real manga with on-device OCR Open your own manga images and tap a speech bubble. KumiOu detects the bubble, reads the Japanese, and shows a translation with furigana and instant dictionary lookups — all processed privately on your device. A dictionary that keeps up with you Search vocabulary, kanji, and grammar with fast, forgiving lookup. Every entry comes with readings, furigana, meanings, JLPT level, and example sentences — tuned to your study level. Notebooks that remember for you Save words, kanji, and grammar into notebooks and let spaced repetition schedule your reviews. Flag the sets you care about and keep everything synced across your devices. Practice that sticks Reinforce your japanese mastery through unlimited jlpt-based quizzes, anki cards, and fun word games like Snake and Crossword. Read beyond manga Browse a curated library of Japanese news, novels, and blogs, save readings for later, and look up anything you don't know as you go. Stay focused Optional Focus tools use Screen Time to gently shield distracting apps while you study, so a short session stays a study session. A place you'll want to return to The whole app lives on a quiet seasonal pond that shifts with the time of year — an unhurried, beautiful backdrop for daily practice. Free to use, with an optional subscription that unlocks premium features. Your learning data stays yours, and on-device recognition means your manga never leaves your phone. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kumi-ou-landing-page.vercel.app/privacy
App privacy
The developer, Trung Luong, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
- Contact Info: Email Address
Used for: Developer’s Advertising or Marketing, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Advertising Data
- User Content: Photos or Videos
Used for: Third-Party Advertising, App Functionality
Alternatives to KumiOu
Looking for apps like KumiOu? Here are 6 similar apps on the App Store. The highest rated is HayaiLearn (4.5/5), and all 6 are free to download.
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Nihonten - Learn Japanese
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Language Byte
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Furigana Reader Kanji Scanner
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Zelda Nihongo - Learn Japanese
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Anki N3-JLPT Test: AI powered
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HayaiLearn
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| KumiOu | – | Free | October 1, 2026 | |
| Nihonten - Learn Japanese | – | Free | Aug 3, 2026 | Compare |
| Language Byte | 3.5 / 5 (2) | Free | Oct 6, 2026 | Compare |
| Furigana Reader Kanji Scanner | – | Free | Oct 8, 2026 | Compare |
| Zelda Nihongo - Learn Japanese | – | Free | Oct 19, 2026 | Compare |
| Anki N3-JLPT Test: AI powered | – | Free | Oct 10, 2026 | Compare |
| HayaiLearn | 4.5 / 5 (38) | Free | Oct 7, 2026 | Compare |
Compare KumiOu with the top alternatives: ratings, updates, ASO score and keyword gaps →