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Submariner vs Aonsoku: catalog facts
Submariner	Aonsoku
Free Free and open source under the 3-clause BSD license.	Free Free and open source under the MIT licence.
macOS	Linux
Native Mac interface, not Electron Works with Subsonic and compatible servers	Works with Navidrome and other Subsonic-compatible servers Desktop app instead of a browser tab
macOS only Needs a Subsonic-compatible server to be useful	Needs a Navidrome or Subsonic server to connect to The homepage offers almost no documentation
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: MIT
Not stated if an account is 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.