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Jelu vs Sobuu: catalog facts
Jelu	Sobuu
Free Free and open source under the MIT licence.	Free Free and open source under the Apache-2.0 licence, with no ads.
Web, Self-hosted	Android
Imports reading history from Goodreads Automatic book and author metadata	Page-by-page reading progress and reading time Comments tied to a page so others avoid spoilers
Requires running your own server Tracks books rather than reading ebook files	Android only Social features depend on other readers using the app
Self-hosted	Downloadable app
Open source	Open source
License: MIT	License: Apache-2.0
Account 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.