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Rhythmbox vs Sound Center: catalog facts
Rhythmbox	Sound Center
Free Free and open source under the GPL v2.0 or later.	Free Free and open source under GPL 3.0 or later.
Linux	Linux, Android
Library management, podcasts and internet radio in one app Fits the GNOME desktop	Local music and podcasts in one player Podcast search and streaming built in
Built for Linux desktops, with no official Windows or macOS build Project page gives little detail on features	Small project with few contributors Feature set is simpler than dedicated podcast apps
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: GPL-3.0-or-later
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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