I was not thinking about cookies, but simple account information and HTTP request information. And I agree that there is a difference between an account that I

I was not thinking about cookies, but simple account information and HTTP request information. And I agree that there is a difference between an account that I log in and a unique device id. But then, you need to accept a permission that the application can access the device id on android. My main point is that the data that is collected here is not that different from what you get from an apache log: What type of (device, browser) the request comes from, what display resolution he has, the orgin of the request (ip,locale)etc.