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BookLogr vs Openshelf: catalog facts
BookLogr	Openshelf
Free Free and open source under the Apache 2.0 licence.	Free Free and open source under the GPL-3.0 licence.
Web, Self-hosted	Android
Book lookup by title or ISBN via OpenLibrary Export to CSV, JSON and HTML	No account and data stays on the device Flexible organisation by category, collection and imprint
Expect bugs and breaking changes during active development Tracks books rather than reading ebook files	Android is the supported platform No cloud sync between devices
Self-hosted	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-3.0-only
Not stated if an account is needed	No account needed
Not stated if it works offline	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.