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Koodo Reader vs Google Play Books: catalog facts
Koodo Reader	Google Play Books
Free Free and open source under the AGPL-3.0.	Free Free to use; ebooks and audiobooks are bought individually.
Windows, macOS, Linux, Android, iOS, Web	Android, iOS, Web
Over fifteen formats including EPUB, PDF, MOBI, AZW3, comic archives and DOCX Syncs through storage you already control rather than a vendor cloud	Reads and plays books in a web browser as well as on mobile Ebooks, audiobooks, comics and textbooks in one library
It reads DRM-free files only; books bought from a store with DRM will not open Sync depends on whatever storage you configure, so the setup is on you	Requires a Google account Purchases are tied to Google's store
Downloadable app, Web application	Downloadable app, Web application
Open source	Closed source
License: AGPL-3.0	License not stated
No account needed	Account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.