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Rufin vs Submariner: catalog facts
Rufin	Submariner
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the 3-clause BSD license.
Linux	macOS
Plays local files and music server libraries in one app Native desktop application rather than a web wrapper	Native Mac interface, not Electron Works with Subsonic and compatible servers
Young project with a small user base Supported servers are not detailed in the research	macOS only Needs a Subsonic-compatible server to be useful
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: BSD-3-Clause
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 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.