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Power Ampache 2 vs Ultrasonic: catalog facts
Power Ampache 2	Ultrasonic
Free Free and open source under the GPL-3.0 license.	Free Free and open source under the GPL-3.0.
Android	Android
Works with Ampache, Nextcloud Music and compatible backends Downloads can be exported as ordinary files	Works with Navidrome, Ampache, gonic and other OpenSubsonic servers Multiple server support
Requires your own compatible music server Android only	Needs a compatible music server you run or have access to Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Account 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.