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Volume Control vs Background Music: catalog facts
Volume Control	Background Music
Free Free and open source under the GPL-2.0-or-later licence.	Free Free and open source under the GPL-2.0 licence.
Linux	macOS
Separate volume control for each application Per-device volume adjustment	Per-application volume control with boost above maximum Auto-pauses music when other audio plays
Linux only Built around the PulseAudio sound system	Still labelled alpha by its developer Auto-pause works only with supported music players
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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