Compare software

Satori ReaderReadlang
Freemium

Guest access is available; full content requires a paid plan listed on the pricing page.

 Freemium

Free to start, with paid plans available.

Web Web, Browser extension
  • Annotated stories with grammar and kanji help
  • Audio to listen alongside the text
  • Click-to-translate on any text or website
  • Translated words saved automatically as flashcards
  • Japanese only
  • Less suited to complete beginners
  • Best suited to learners who can already read simple texts
  • Some features require a paid plan
Web application Web application, Browser extension
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked September 23, 2026

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