A top tip would be to check the dates on the post before replying! You were answering someone who was writing from 2018 (which is alarmingly 7 years ago now)
SQ Control is now available as part of the 1.6 firmware update - you can get the files from the website in the usual way (https://www.allen-heath.com/resources/)
SQ Control is currently available on iOS and Android. It will be available on Windows and MacOS in the near future.