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Tulsi Gallery vs Wolf Gallery: catalog facts
Tulsi Gallery	Wolf Gallery
Free Free and open source under the GPL-3.0 licence, with no ads.	Free Free and open source under the GPL-3.0 licence.
Android	Android
No data collection or ads Open source and available on F-Droid	Every file stored encrypted in private app storage Works offline
Android only No cloud backup or sync described	Android only Files live inside the app, so other galleries cannot see them
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-only
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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