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SoundTree Recorder vs Fossify Voice Recorder: catalog facts
SoundTree Recorder	Fossify Voice 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
Hierarchical topic tree for organizing recordings Bookmarks for marking moments in a recording	Works offline with no internet permission needed No ads or tracking libraries
Android only No cloud sync or backup built in	Android only Basic feature set without editing tools
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.