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Librera Reader vs BookFusion: catalog facts
Librera Reader	BookFusion
Free Free to download.	Freemium Free account to get started, with paid plans for more.
Android	Android, Web, Browser extension
Wide format support including DjVu and comics Auto-scan of book folders with reading progress	Syncs reading position across devices Reads both EPUB and PDF
Android only Many settings can take time to learn	Books are stored in a hosted cloud service Requires an account
Downloadable app	Downloadable app, Web application, Hosted service, Browser extension
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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