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

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