I used the same method of launching of iRig and iPad as wrote rammdesign and it worked until I have changed iPad 2017 to iPad 2021 with ipadOS 15.4.1 - since then I can´t use Amplitube on iPad...when I connect iPad to iRig I can´t hear any sound and I can´t switch presets by iRig and alsi pedal doesn´t work
It is interesting that Amplitube on my macBook works OK and there I use cable from Aliexpress (USC-B/USB-C) while for connecting of iPad I use original IK cable MiniDIN/lightning....I´m very frustrated that I can´t use full version Amplitube on my iPad...I spent a money for application and also for new iPad and I can use them...