PlayKatsuyo

Katsuyo turns Japanese conjugation from a memorization chore into a few minutes
of daily practice.

Pick a JLPT level from N5 to N1 and play a timed round: you're shown a word and
a target form, and you choose the correct conjugation. Score points for speed
and accuracy, hear every answer pronounced, and see exactly which forms are
costing you.

WHAT'S INSIDE

• Every JLPT level, N5 through N1, with verbs and adjectives drawn from
real level lists
• 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
• Native-quality audio for every answer, plus on-device speech
• Full conjugation tables and plain-English explanations of the verb groups —
godan, ichidan, and the irregulars
• Statistics that track accuracy and progress over time, and say what to
work on next
• 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