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Linthra vs Ultrasonic: catalog facts
Linthra	Ultrasonic
Free Free and open source under the AGPL-3.0.	Free Free and open source under the GPL-3.0.
Linux, Android	Android
Plays local files and streams from Jellyfin, Navidrome/Subsonic and Plex Explicit offline cache for streamed music	Works with Navidrome, Ampache, gonic and other OpenSubsonic servers Multiple server support
Streaming requires running your own music server Young project under active development	Needs a compatible music server you run or have access to Android only
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: GPL-3.0
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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