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Supersonic vs Subsound: catalog facts
Supersonic	Subsound
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source under the GPL-3.0 licence.
Windows, macOS, Linux	Linux
Provides a native desktop interface with gapless playback.	Native desktop client for Navidrome Available on Flathub
Requires access to a supported music server.	Needs a Navidrome server to be useful Small project with little documentation on the repository page
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-only
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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