Compare software

Chaka Book Reader vs Book's Story: catalog facts
Chaka Book Reader	Book's Story
Free Free and open source under AGPL-3.0-or-later.	Free Free, ad-free and open source under the GPL 3.0.
Android	Android
Opens a very wide range of document and comic formats Reads files directly from archives	Supports EPUB, PDF, FB2, TXT, HTML and Markdown Extensive reading customisation
Android only No release downloads listed on the repository	Android only Last code update was in early 2026
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: GPL-3.0-only
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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