Will the StreamMagic 'talk' to the TuneIn Radio Pro app?
As John points out, the Stream Magic 6 isn't Airplay enabled. However, just like the DacMagic Plus, it does support the optional BT100 (not sure if I'm allowed to post a link to this but you can see it on our website).
The BT100 is a wireless audio receiver which supports aptX - by plugging it into one of the USB ports on the Stream Magic 6 you can stream any audio to it from devices that can output Bluetooth audio. So this is the easiest way to stream audio from any apps to the Stream Magic 6.
I know, I know...Bluetooth!, but the received audio goes through all the same audio upsampling and DACs, etc as the other sources and digital inputs. Also, if the device outputs aptX (which more and more can now) then the BT100 will detect this, and it does sounds pretty awesome. The Stream Magic 6 simply sees the BT100 as another digital input which you can select and play