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Gramophone vs Booming Music: catalog facts
Gramophone	Booming Music
Free Free and open source.	Free Free and open source under the GPL-3.0.
Android	Android
Follows Android and Material Design conventions Built on the Media3 playback library	Material You design with customization options Word-by-word synced lyrics
Android only Local files only, no streaming service support	Plays local files only, no streaming services Android only
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-only
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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