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Fossify Voice Recorder vs SoundTree Recorder: catalog facts
Fossify Voice Recorder	SoundTree Recorder
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Works offline with no internet permission needed No ads or tracking libraries	Hierarchical topic tree for organizing recordings Bookmarks for marking moments in a recording
Android only Basic feature set without editing tools	Android only No cloud sync or backup built in
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-only
No account 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 2, 2026

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