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Quire vs Liseur: catalog facts
Quire	Liseur
Free Free and open source under the Apache-2.0 license.	Free Free and open source under the MIT licence.
Android, Self-hosted	Android
Browses calibre-web libraries over OPDS Reading progress syncs to a server you run yourself	Reads local EPUB files and remote libraries in one shelf Works with calibre-web, Komga and BookOrbit servers
Requires a calibre-web setup to be useful Young project with a small user base	Android only Focused on EPUB rather than PDF or comic formats
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License: Apache-2.0	License: MIT
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.