Yesterday I have tried out the uRemote app on iOS and OS X, and I have a one remark and 2 questions:
1. The firmware update through USB was not working on an Apple Mac and not on a Windows (32bit) machine. I ended up upgrading the uTrack24 through the web-interface, which worked.
2. The uRemote app on OS X kept failing to work, is this a known issue? (Yosemite 10.10.3 is my system)
3. On iOS the transport side of the app worked perfectly. The Mute, solo and volume functions did not work. I was using an existing songlist, on which all channels (eight) were unmuted in the songlist. Is this a known issue?