In addition to that I am counting the visitors to my websites and the installations of my apps. I do the former without storing any of your personally identifiable data. For the latter, a random string is generated on your device and stored on my servers upon the first start of my apps. This string does not contain any personally identifiable data. It also can't be used to identify you or your device across my apps, since the string is purely random and only unique to a particular installation.