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BookLogr vs Rocinante: catalog facts
BookLogr	Rocinante
Free Free and open source under the Apache 2.0 licence.	Free Free and open source under the AGPL-3.0 licence.
Web, Self-hosted	Android
Book lookup by title or ISBN via OpenLibrary Export to CSV, JSON and HTML	Works with any BookWyrm instance Native Android interface instead of a web page
Expect bugs and breaking changes during active development Tracks books rather than reading ebook files	Requires an account on a BookWyrm instance Android only
Self-hosted	Downloadable app
Open source	Open source
License: Apache-2.0	License: AGPL-3.0-only
Not stated if an account is needed	Account 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.