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Fossdroid vs IzzyOnDroid: catalog facts
Fossdroid	IzzyOnDroid
	Screenshots
Best for: Finding open-source Android apps from a web browser	Best for: Android users of F-Droid clients who want apps missing from the main repository
Free Free to use, and all listed apps are free and open source.	Free Free to add and use from any F-Droid client.
Web	Android, Web
Only lists free and open-source apps Trending, popular and newly added lists Easy to browse from a desktop browser	Around 1,400 open-source apps, many missing from the main F-Droid repo Official developer builds with additional screening Daily update checks and index refreshes Web catalog with filters for license, category and anti-features
Mirrors the F-Droid catalogue rather than adding its own apps No automatic update handling like a store client	Needs an F-Droid client such as F-Droid or Droid-ify to install apps Apps are developer builds, not built from source by the repository
Web application	Hosted service
Not open source	Not open source
License not stated	License not stated
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Sources for Fossdroid fossdroid.com Catalog checked October 1, 2026	Official website Full listing and sources Sources for IzzyOnDroid apt.izzysoft.de/fdroid Catalog checked September 23, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.

Screenshots