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Soul Searching vs Booming Music: catalog facts
Soul Searching	Booming Music
Free Free and open source under GPL-3.0.	Free Free and open source under the GPL-3.0.
Android	Android
Playlists and multiple played lists with their own play modes Listening statistics	Material You design with customization options Word-by-word synced lyrics
Local files only, no streaming services Desktop builds are less documented than the Android app	Plays local files only, no streaming services Android only
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
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.