Compare software

Book's StoryKOReader
Free

Free, ad-free and open source under the GPL 3.0.

 Free

Free and open source under the AGPL 3.0.

Android Linux, Android
  • Supports EPUB, PDF, FB2, TXT, HTML and Markdown
  • Extensive reading customisation
  • Runs on Kindle, Kobo, PocketBook, Cervantes and reMarkable hardware
  • Opens PDF, DjVu, CBZ, EPUB, FB2, Mobi, DOC, RTF, HTML, CHM and TXT
  • Android only
  • Last code update was in early 2026
  • Installing on a locked e-reader means jailbreaking it first, at your own risk
  • The settings menus are deep and not self-explanatory
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-only License: AGPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked September 21, 2026

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