[widgeon13]

How is it determined that a purchase is made on an ipad vs an Apple computer or a smart phone, iphone. I find it amazing that three days after Christmas they are able to tell how many apps have been installed on new devices, how many new devices have been activated and how many purchases have been made on these devices.

Just amazing for me. I use them all but certainly don't claim to understand how the magic works.

Thanks for any logical answers.