Free and open-source music streaming client for Subsonic API compatible servers
4.01·417 reviews·50,000+ downloads
Ultrasonic is a free, open-source Subsonic client for Android that lets you stream music from Subsonic-compatible servers. It emphasizes speed and flexibility with multiple servers, offline access, and server-based playlists, including features like jukebox mode and a built-in server chat.
Pros & Cons
Free and open-source with GPL-licensed source code on GitLab
Subsonic-compatible servers for flexible music streaming
Offline mode for listening without internet
Multiple-server support and server-side playlists
Not ranked in any top lists
Focused on Subsonic ecosystem; limited information about broader streaming protocols
No explicit cross-platform desktop or Windows-specific features mentioned
About Ultrasonic
Ultrasonic is a music & audio app developed by Moire.
Download Statistics
Ultrasonic has been downloaded 58 thousand times. In the last 30 days, the app was downloaded 240 times.
User Ratings
Ultrasonic is rated 4.01 out of 5 stars. The rating is based on 420 ratings.
App Information
Ultrasonic is FREE to download. The APK download size is 5.52 MB. The latest version available is 4.8.0. The last update was on November 2, 2023.
Technical Requirements
Ultrasonic requires Android 4.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play July 2015.
Description
Ultrasonic is a Subsonic (and compatible servers) client to Android. You can use Ultrasonic to connect with your server and listen music.
Main features: * Thin * Fast * Dark and light theme * Multiple server support * Offline Mode * Bookmarks * Playlists on server * Ramdom play * Jukebox mode * Server chat * And much more!!!
The source code is available with GPL license in GitLab: https://gitlab.com/ultrasonic/ultrasonic If you have any issue, please post in: https://gitlab.com/ultrasonic/ultrasonic/issues Play store icon designed by: http://www.flaticon.com/authors/sebastien-gabriel
Recent changes: Ultrasonic 4 brings along a complete overhaul of how media is being played back. We have switched to a modern library to handle the playback and fixed wuite a few bugs in the process. Additionally the Offline mode now supports browsing based on ID3 tags. Go to the project page to see full changelog.
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New free favorite, just needs radio/similar artists. I also have Dsub and like the "radio" button when browsing an artist. That's also present on the web UI of my Subsonic server, and I'd like to see it in this client.
★★★★☆Peter Szabo· Apr 4, 2022
This is the best player I found for my Air sonic server. The only problem is that sometimes it fails to send the track names and cover picture through Bluetooth to car stereo.
★★★★★Brandon Watkins· May 8, 2022
Great app, use it every day to play music from my palindrome server on my android phone
★★☆☆☆Jonathan Lewis· Feb 13, 2025
Downloaded this for easier offline playing of music when I don't have mobile service. It was working well for that until I realized it wasn't resuming where I left off. Every time I start my truck it goes back to track 1 of the last album I selected. I could be 5 songs deep and instead of picking up where I left off it restarts track one. Then I noticed if I rotate my phone it would restart the current track each time, then the app crashed, then the play/pause button flashed without playing.
★☆☆☆☆Chelsea Bell· Nov 18, 2018
Having trouble getting connected with the 6.1.4 server update. Also, when it doesn't connect the app crashes instead of letting you change the settings.
★★☆☆☆Eric· Sep 22, 2025
It seemed to work fine with my subsonic server, but it was hard to tell the difference between a cached song and ones that haven't been downloaded yet. Also crashed when trying to enable a custom cache location. Apparently it couldn't get access. Have no idea where default cache location even is.
★★☆☆☆Prashanth T· Apr 1, 2021
I've starred a folder. Now it's not too much to expect a 'Starred' category to display my starred folders, is it? What's the point of starring a folder then? 😂
Google Play Rankings for Ultrasonic
This app is not ranked
Technologies used by Ultrasonic
9 permissions·30 libraries
Subscribe to see full permission and library details
Trust & Safety: Requests network state, Bluetooth and Bluetooth Connect, foreground service, internet access, wake lock, and post-notifications to enable streaming, playback, and foreground operation. It also uses a dynamic receiver not exported permission; no location or camera permissions are requested.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
