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Houdoku vs Aidoku: catalog facts
Houdoku	Aidoku
Free Free and open source.	Free Free, open source and ad-free.
Windows, macOS, Linux	macOS, iOS
Reads local manga files and extension sources Vertical and two-page reading modes	Open source with no ads Imports local files and connects to media servers
Desktop only, with no mobile app Online sources depend on extensions	Apple platforms only External sources must be added separately
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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