I was helping a friend with an ipad air she was given a few months ago. I downloaded the Kindle app from the App Store, no problem. Connected her to Amazon via Safari and she set up an account but Amazon said she couldn't set one-click up there, she had to do it on a real computer. Ok. Let's forget that. I went to the App Store and looked for the Kindle Store app (which I have on my ipad, and which works there). IT IS NOT THERE. I downloaded the AMAZON STORE app and went to the Kindle Store. I chose a book. And I go the message "This mobile application does not currently support digital downloads. Add this item to your Wish list and you can view and purchase it from your computer." I have verified this on my own ipad. Apparently there is no current APP with which to buy Kindle books on iOS. It IS possible, I THINK, to buy them by going through Safari to their website. What's going on here?