Hello,
I was unable to restore a purchase of MIDI out on iOS and was double charged for the upgrade.
Your assistance is appreciated,
Aaron
As far as my knowledge goes, it is impossible to buy the same IAP twice in the appstore.
Even if you think you have bought it twice, it will not be billed twice. our IAP’s are “non consumable” meaning that the pruchase is forever.
If you click on buy when the pruchased isn’t restored yet, the appstore will notice that you have allready got this IAP. You will not get an extra notice of that.
Also note that there is an extra IAP in our shop for AU support.