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IzzyOnDroid vs Zapstore: catalog facts
IzzyOnDroid	Zapstore
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Best for: Android users of F-Droid clients who want apps missing from the main repository	Best for: Android users who want apps delivered directly from developers with verifiable signatures
Free Free to add and use from any F-Droid client.	Free Free to use, with optional tips sent directly to developers.
Android, Web	Android
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	Releases are signed by developers and can be verified by anyone Catalog of more than 3,000 apps with community curation Direct tipping and comments between users and developers
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	Android only for now Younger store with a smaller catalog than the main alternatives
Hosted service	Downloadable app
Not open source	Open source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for IzzyOnDroid apt.izzysoft.de/fdroid Catalog checked September 23, 2026	Official website Full listing and sources Sources for Zapstore zapstore.dev Catalog checked September 23, 2026

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

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