iOS vs. Android...

This falls under the category of what you cannot do with iOS:

https://www.yahoo.com/tech/film-student-spied-everything-thief-did-stolen-smartphone-144553464.html

Quote from the link:

"However, the phone he used to lure a victim in was not an iPhone. You can’t run spyware apps on the iPhone, and you don’t have the same level of control you do with Android."

It's scary how easily the Android phone can be controlled remotely...

To be fair, iOS is susceptible to spyware as well (see here for example). True, Android seems to have a far more troublesome track record but iOS surely isn't an impenetrable fortress.