I wanted to buy this app with me asked Amazon voucher available. Unfortunately Amazon does not acknowledged this coupon, so I have to pay in full even the app now. Of course, Amazon has this a "plausible" response. Allegedly, the voucher was entered only after ordering! Bullshit !! I know that probably, when I entered the voucher.
But unfortunately this bill to be so common in the App Store. I will continue bleibem the Google Play Goals. That's in terms something always been correct.
My conclusion: Who wants to be hauhen over the ear should buy the Amazon App Store !!