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Subsound vs Nocturne: catalog facts
Subsound	Nocturne
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0-or-later.
Linux	Linux
Native desktop client for Navidrome Available on Flathub	Automatic synced lyrics Caching keeps large libraries responsive
Needs a Navidrome server to be useful Small project with little documentation on the repository page	Built around Navidrome as the library backend Linux only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-or-later
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 October 1, 2026

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