I may argue that policing the App store is the main feature of the iPhone. That is why I bought it in the first place. It is not a computer in general sense. I want only a few apps and I want them to behave.
I find it hard to believe you bought the iPhone because of Apple's store "policing". This is what they want you to believe.
In reality there are sandboxing mechanisms and permission systems in place and no store "policing" is necessary. That's why android isn't less secure and that's why unless your android is not rooted you can use banking, google wallet and other security-sensitive apps and watch DRM-protected videos there as well.