Thank you all for clarifying Amazon App store to me. It seems to me Amazon is keeping track of who uses which app how often. This explains why their App store has to be up and running before starting your there bought iRp app. I'm a happy user of the Google playstore where the iRp app even came at a lower price than Amazon's. At gigs I always switch off WiFi for I hate FB messages popping up and clouding my chords.
my 2 cents. . .