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