Hello, 
I have problem of midi synchro with iOs app. I want the beatstep to control tempo of iOs apps like Loopy HD or Animoog... But the rotary knob tempo/time does not change BPM in those apps. 
My setup
Betasten pro >Midi>iRig>iPhoneSE : animoog, funkbox = tempo does not sync  

It works well with hardware : 
Betasten Pro>Midi>volca beats = tempo sync  

thanks