I used to love this app. An update occurred and now it just says it is having technical difficulties all the time and will not let me book tickets. I wanted to purchase two tickets at $445 each and it would not let me. By the time I could get to a different device to book, prices went up to $690 each ticket. Delta will not work with me on the price even though their app would not let me book at the price I originally tried to purchase. I used to only fly Delta, but that will change now.