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Fossify Music Player vs LatentJam: catalog facts
Fossify Music Player	LatentJam
Free Free and open source under the GPL-3.0, with no ads.	Free Free and open source under the Apache 2.0 licence.
Android	Android
No ads, tracking or unnecessary permissions Equalizer with presets and a sleep timer	Smart shuffle based on how tracks actually sound Model runs on the device with no account
Plays local files only, with no streaming services Android only	Young project with a small user base Background analysis of a large library takes time
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: Apache-2.0
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.