A free study tool
built for the JLPT

Answer questions across vocabulary, grammar, and kanji for N5–N3. The app tracks what you know and schedules the rest to come back at the right time.

Try it free
N5–N3
Beta coverage
6,500+
Study items
Free
No cost, no ads

What's inside

Spaced repetition

SM-2 scheduling resurfaces items just before you'd forget them. Reviews stay short because the timing does the work.

Weakness tracking

Items you struggle with come up more often. Items you know well get pushed back. No manual configuration needed.

Progress overview

A simple dashboard shows what you've covered, your accuracy by category, and an estimated exam readiness score.

Short sessions

Reviews are designed to take 10–20 minutes. You can stop and pick up where you left off at any time.

JLPT-format questions

Vocabulary, grammar, and kanji questions modeled after the actual exam format, covering N5 through N3 in beta.

Skip what you know

Already know a word? Mark it as known and it goes straight to a long review interval without wasting your time.

Give it a try

Adapteki is in early beta and completely free to use. If you try it and have thoughts - good or bad - feedback is genuinely appreciated.

Create a free account