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Symfonium vs Submariner: catalog facts
Symfonium	Submariner
Paid One-time purchase with a free trial on Google Play; no subscription.	Free Free and open source under the 3-clause BSD license.
Android	macOS
Connects to many self-hosted media servers Hi-Res, DSD and USB DAC output with AutoEQ	Native Mac interface, not Electron Works with Subsonic and compatible servers
Android only Paid after the trial	macOS only Needs a Subsonic-compatible server to be useful
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: BSD-3-Clause
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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