This new no credit card purchases are supported in the app is bull. I personally will use my credit if the book is over $10 but if it is under that then I will just buy it outright with my card. Now you don't have any choice. I'm very disappointed and dissatisfied with this decision made by Amazon. There is no logic to this decision on just makes the experience more frustrating. And of course the app updated before we were told what would happen if it updated.