Used to work perfectly for me in iOS 5,6,7. In iOS 8 it runs properly but there is no longer any sound. Maybe due to Audiobus issues? Figure by Propellerheads & Junglator give the iOS 8 Audiobus error when starting but I still get sound from those programs. Please update with full support for iOS 8 with Audiobus. I want to rate this app 5* again. UPDATE: version 2.7.0 on September 19 fixed the Audiobus & no sound issues. Unfortunately the right side of the screen is now black on my iPhone 4S for this app so the keys & knobs on that side cant be operated. Getting closer.