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Alfa Ebooks Manager vs Openshelf: catalog facts
Alfa Ebooks Manager	Openshelf
Freemium Free download, with paid editions available to buy.	Free Free and open source under the GPL-3.0 licence.
Windows	Android
Catalogs ebooks, paper books and audiobooks together Fetches book details from online sources	No account and data stays on the device Flexible organisation by category, collection and imprint
Windows only Full features require a purchase	Android is the supported platform No cloud sync between devices
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-only
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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