Tuning - Change Playback Pitch

[elym]

Hi, I'm waiting for this feature which probably is so easy to add to the app... You see it in every cheap/free tuning app so how is it that it's absent in ireal pro?
What I request is a very simple feature that allows to calibrate A4 to a pitch different than 440Hz, say with a range of 400 to 470. This will allow me and so many others to play with instruments tuned to anything other than A=440. Please add it in the update! I'll be very grateful if you do.
Thank you!