Japanese practice from N5 to N1
Build a study routine with Kanji, vocabulary, grammar, reading, and listening practice organized around JLPT levels.
Projects
Katsu: JLPT Quiz & Kanji Live 
Education app
Katsu: JLPT Quiz & Kanji
Build your Japanese skills with JLPT Kanji and vocabulary from N5 to N1.
Katsu helps Japanese learners practice Kanji, vocabulary, grammar, reading, and listening with quizzes, pronunciation, and progress tracking. Start with free N5 content and explore N4 through N1 with Katsu Pro. The free version contains ads.
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Katsu: JLPT Quiz & Kanji Highlights
Built for a focused mobile workflow.
N5 starts free, with Katsu Pro access to N4 through N1
Kanji and vocabulary quizzes with smart distractors and audio playback
Offline study with included and downloaded learning content
Progress statistics, achievements, favorites, and optional cloud backups
Start free, continue with Katsu Pro
Start with free N5 content, then explore Pro options for N4 through N1. The free version includes advertising; current offers and access details are shown in the app.
- Free N5 content
- Katsu Pro for N4-N1
- Optional rewarded ads
Kanji, vocabulary, and audio quizzes
Practice curated JLPT content with readings, meanings, examples, tests, and automatic pronunciation playback.
- Kanji quizzes
- Vocabulary tests
- Timer and JLPT level settings
Progress, backup, and review
Track results, earn achievements, and review favorites. Optional cloud backups and file exports help you keep a copy of your learning progress.