If you follow any iOS technology blogs you might have seen this recent scandal:
If you bought the app on Google Play (even if you cancelled the order) I have your email address, your suburb, and in many instances your full name.
This, they say, is bad because this is not what happens with Apple’s App Store.
However, I don’t think Google are doing anything weird here, and I say this as someone who is not a fan of Android. The commercial relationship between developers and Apple is different from the relationship between Google and developers1.