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ProseReader vs Book's Story: catalog facts
ProseReader	Book's Story
Free Free and open source under the GPL-3.0.	Free Free, ad-free and open source under the GPL 3.0.
Android	Android
Actively developed with frequent releases Available on F-Droid	Supports EPUB, PDF, FB2, TXT, HTML and Markdown Extensive reading customisation
Focused on EPUB files Small user base and community	Android only Last code update was in early 2026
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-only
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
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.