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WaniKaniSmouldering Durtles
Freemium

The first levels are free; full access requires a subscription.

 Free

Free and open source under the Apache 2.0 licence; WaniKani itself is a separate service.

Web Android
  • Structured path through 2,000 kanji and 6,000 words
  • Mnemonics for radicals, kanji and vocabulary
  • Native Android interface for WaniKani lessons and reviews
  • Continues a well-known open-source client that was no longer maintained
  • Fixed lesson order that cannot be rearranged
  • Covers kanji and vocabulary only, not grammar
  • Only useful with a WaniKani account
  • Android only
Web application Downloadable app
Closed source Open source
License not stated License: Apache-2.0
Not stated if an account is needed Account needed
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.