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Subsound vs Supersonic: catalog facts
Subsound	Supersonic
Free Free and open source under the GPL-3.0 licence.	Free The open-source software is available without a license fee. Hosting, hardware and…
Linux	Windows, macOS, Linux
Native desktop client for Navidrome Available on Flathub	Provides a native desktop interface with gapless playback.
Needs a Navidrome server to be useful Small project with little documentation on the repository page	Requires access to a supported music server.
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0
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 October 1, 2026	Official website Full listing and sources Checked September 22, 2026

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