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Koodo Reader vs Clearview X: catalog facts
Koodo Reader	Clearview X
Free Free and open source under the AGPL-3.0.	Paid Available as a paid app; the App Store listing does not state its price.
Windows, macOS, Linux, Android, iOS, Web	macOS
Over fifteen formats including EPUB, PDF, MOBI, AZW3, comic archives and DOCX Syncs through storage you already control rather than a vendor cloud	Reads several ebook and comic formats Offers scrolling, page flipping, and single or double page layouts
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	Available for macOS
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 October 8, 2026

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