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Fossify File Manager vs Files by Google: catalog facts
Fossify File Manager	Files by Google
Free Free and open source, with no ads.	Free Free app from Google.
Android	Android
No ads Privacy-focused open-source project	Cleanup suggestions for unused apps, duplicates and large files Offline, encrypted file sharing with nearby people
Android only Research does not document network or cloud storage support	Android only Closed source and tied to Google's ecosystem for cloud backup
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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