I have the same problem. Steinberg is not supporting this app at this point - this forum is not attended by any Steinberg people - and - the app is now free.
So in conclusion, Steinberg made an app that was designed for iOs5 (maybe iOs6?), and when Apple updated their OS to iOs7 the device no longer works properly. And Steinberg now gives the app away because they are done with it.
Did I miss anything?
Cubase 6.5 (6.5.5) and 5.5 (5.5.3), WaveLab Elements 8, iC Pro remote app, LoopMash HD, Win7 64-bit, Intel C2Q9550@2.83GHz, 8G ram, Radeon HD 6570, Gigabyte X48-DS5 MB, Mackie 1640i (FireWire), M-Audio Keystation 61es controller via an M-Audio Midi-Sport 1X1.