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Usagi vs Komikku: catalog facts
Usagi	Komikku
Free Free and open source under GPL-3.0-only.	Free Free and open source.
Android	Android
Built-in tunnels to reach sources behind firewalls Several interface styles, including Modern and Classic	Free and open source Extension system for adding sources
Android only Content depends on third-party online sources	Android only Not distributed through Google Play
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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