I dl this for the free 4x6 prints they've been promoting. I have not been able to get this to work in the ap. When I go to check out there is an error processing the photos. I've contacted customer care multiple times and been told different things ranging from the ap needs to be reinstalled (didn't work), the cache needs to be cleared ( didn't work), there's a known issue with the ap and to try again in an hour (it's been more than a month), and that I should just use their website (not free)