
PlayKatsuyo
Japanese Conjugation Practice
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Free
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About
As you play, Katsuyo analyzes the kinds of mistakes you make and feeds them to you to practice in three ways:
- When you go for practice mode, it recommends targeted practice on your weakest categories (godan verbs, passive form, etc.)
- The game records your mistakes and feeds them back to you in subsequent rounds of the game and checks whether progress has been made.
- You can opt to do a round consisting entirely of your past mistakes, fed by a SRS algorithm.
WHAT'S INSIDE
• N5-N1 verb and adjectives, whose forms are chosen based on frequency of use in real conversation.
• Statistics of your troublesome forms, broken down by conjugation type (e.g. passive, volitional), and word category (godan verb, i-adjective, etc.)
• Practice mode which feeds you your most troublesome forms, or any combination of categories of your choice.
• The Daily Five: five conjugations a day at your level, the same five for everyone, untimed. Keep your streak and accumulate "perfect days".
• Timed Play rounds for pressure, untimed Study sessions for learning
• Spaced repetition that quietly reschedules the forms you get wrong, so practice concentrates where it's weakest — and a Review tile on the home screen that serves the forms due today, ten at a time.
• High quality voice, checked rigorously to ensure no pronunciation errors.
• Full conjugation tables and plain-English explanations of the verb groups — godan, ichidan, and the irregulars
• Leaderboards for every JLPT level: this week and all-time
• An optional account that backs up your progress and carries it to your other devices
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What's New in PlayKatsuyo
1.1.8
October 23, 2026
- Updated home page UX - Improved conjugation inclusion/removal based on use in everyday conversation - Daily five reminder notification opt-in - Combine leaderboards into a single component - Can post on weekly leaderboard even if you have scored higher in the past - Newsletter signup on the home page
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