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Sobuu vs BookLogr: catalog facts
Sobuu	BookLogr
Free Free and open source under the Apache-2.0 licence, with no ads.	Free Free and open source under the Apache 2.0 licence.
Android	Web, Self-hosted
Page-by-page reading progress and reading time Comments tied to a page so others avoid spoilers	Book lookup by title or ISBN via OpenLibrary Export to CSV, JSON and HTML
Android only Social features depend on other readers using the app	Expect bugs and breaking changes during active development Tracks books rather than reading ebook files
Downloadable app	Self-hosted
Open source	Open source
License: Apache-2.0	License: Apache-2.0
No account needed	Not stated if an account is needed
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.