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Fossify Gallery vs Wolf Gallery: catalog facts
Fossify Gallery	Wolf Gallery
Free Free and open source with no ads.	Free Free and open source under the GPL-3.0 licence.
Android	Android
No ads Open source and actively maintained	Every file stored encrypted in private app storage Works offline
Android only Editing tools are basic	Android only Files live inside the app, so other galleries cannot see them
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-only
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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