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Koodo Reader vs Panels: catalog facts
Koodo Reader	Panels
Free Free and open source under the AGPL-3.0.	Freemium Free to download; some features and store comics cost extra.
Windows, macOS, Linux, Android, iOS, Web	macOS, iOS
Over fifteen formats including EPUB, PDF, MOBI, AZW3, comic archives and DOCX Syncs through storage you already control rather than a vendor cloud	Opens CBR, CBZ, 7z, PDF and comic EPUB Panel-by-panel view for small screens
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	Apple devices only Closed source
Downloadable app, Web application	Downloadable app
Open source	Closed source
License: AGPL-3.0	License not stated
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 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.