Please see below a run-down of Focusrite product compatibility with Apple iOS 12 for iPhone/iPads as it currently stands:
iTrack Solo
Works with iOS 12? YES
iTrack Dock
Works with iOS 12? YES
iTrack Pocket
Works with iOS 12? YES
iTrack One Pre
Works with iOS 12? YES
Impact App
Works with iOS 12? YES
Tape App
Works with iOS 12? YES
You can see compatibility charts for all of our products using our OS Checker.