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Chora vs Ultrasonic: catalog facts
Chora	Ultrasonic
Free Free and open source under the Apache 2.0 licence.	Free Free and open source under the GPL-3.0.
Android	Android
Works with Subsonic and Navidrome servers Native Android TV interface	Works with Navidrome, Ampache, gonic and other OpenSubsonic servers Multiple server support
Needs your own music library or server Developer describes the codebase as poorly organized	Needs a compatible music server you run or have access to Android only
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it 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.