Kanji Koi · Japanese Study
Nikodem Bernat Education iPhoneiPadiPod touchMacApple Watch
Kanji Koi · Japanese Study is a free Education app for iPhone and iPad by Nikodem Bernat. Rated 2.3/5 from 3 ratings. Requires iOS 18.0.
- Rating
- 2.3
- 3 ratings
- Price
- Free
- on the App Store
- Size
- 119 MB
- Age 4+
- Updated
- Oct 15
- 2026 · v3.0.2
Screenshots
About Kanji Koi · Japanese Study
Learn Japanese kanji with drawing practice and swipe flashcards. Study characters by JLPT level, understand their readings and meanings, and see your progress grow one session at a time. PRACTICE YOUR WAY Trace kanji with stroke guidance to practice writing, or swipe through cards to review recognition. Use hints when you need help and choose kana or romaji readings to suit your level. STUDY FROM N5 TO N1 Browse kanji by estimated JLPT difficulty, from N5 to N1, or by Jōyō school grade. Start with a ready-made list, save favorites, or create your own lists for focused practice. UNDERSTAND EACH CHARACTER Explore meanings, on’yomi and kun’yomi readings, name readings, radicals and stroke counts. Add your own notes and look up characters as you learn. SEE YOUR PROGRESS Follow your drawing and recognition scores, study history and progress by JLPT level. Add friends to see their shared progress and keep each other motivated. KEEP KANJI CLOSE Add Home Screen widgets for kanji, learning history and JLPT progress. With Kanji Koi+, link your devices to keep your learning progress in sync. MAKE IT YOURS Choose a color theme and customize your learning cards in a refreshed design. Guided onboarding helps you choose your starting level, reading style and practice mode. Core study works offline; friends and device sync require an internet connection. Kanji Koi+ is an optional paid upgrade. Device sync requires Kanji Koi+. Terms of Service apply: https://nikodembernat.com/apps/kanji-koi/terms-of-service
What’s new
Version 3.0.2 · Updated October 15, 2026
Kanji Koi is now on Apple Watch. Review the kanji from your favorite lists with meanings, on’yomi, kun’yomi, and name readings right on your wrist. • Sync your favorites from iPhone, then browse your saved cards offline. • Continue from the kanji you last viewed, even after closing the app. • Shuffle your favorites for a fresh review order. • Turn on tap to reveal to hide meanings and readings until you are ready to check your answer. • See familiar KanjiVG character artwork and a localized Watch interface. Requires watchOS 26 or later. Open Kanji Koi on your paired iPhone to sync your favorite lists.
App privacy
The developer, Nikodem Bernat, reported these privacy practices to Apple.
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:
- Identifiers: Device ID
- Usage Data: Product Interaction, Other Usage Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Analytics, App Functionality
Alternatives to Kanji Koi · Japanese Study
Looking for apps like Kanji Koi · Japanese Study? Here are 6 similar apps on the App Store. The highest rated is Quana - Learn Japanese (5.0/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Kanji Koi · Japanese Study | 2.3 / 5 (3 ratings) | Free | October 15, 2026 | |
| Kanabloom | – | Free | Jul 28, 2026 | Compare |
| LangWid: Learn Japanese Easily | 4.7 / 5 (104) | Free | May 8, 2026 | Compare |
| Quana - Learn Japanese | 5.0 / 5 (2) | Free | Feb 2, 2026 | Compare |
| Kanji Pad: Learn by Writing | 4.2 / 5 (9) | Free | Oct 23, 2026 | Compare |
| Obodon: JLPT Kanji Game & Quiz | 5.0 / 5 (2) | Free | Oct 24, 2026 | Compare |
| Meshclass AI Japanese Learning | 4.6 / 5 (19) | Free | Oct 22, 2026 | Compare |