Q. Are there any Android Apps available for Qu series mixers?
A. There is now an Android version of Qu-You available:
There are currently no plans to develop Qu-Pad for the Android platform.
You might want to look at a 3rd party app for the Qu series:
Mixing Station: https://dev-core.org/mixing-station/
Please note 3rd party applications are not directly supported by Allen & Heath.