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Supysonic vs mStream: catalog facts
Supysonic	mStream
Free Free and open source.	Free Free and open source, supported by sponsorships.
Self-hosted	Android, Web, Self-hosted
Works with Subsonic-compatible clients Transcoding for various audio formats	Runs on low-power hardware like a Raspberry Pi Remote access without port forwarding
No bundled player app Smaller community than Navidrome or Airsonic	Music only Requires keeping your own server running
Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: AGPL-3.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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