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Booming Music vs Retro Music Player: catalog facts
Booming Music	Retro Music Player
Free Free and open source under the GPL-3.0.	Free Free and open source under the GPL 3.0.
Android	Android
Material You design with customization options Word-by-word synced lyrics	Many themes and now playing layouts Gapless and crossfade playback
Plays local files only, no streaming services Android only	Android only Plays local files only, no streaming services
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	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.