What makes you think ios devices offer more privacy?
I don't know that my iPhone and iPad have any more privacy but....
Problem is Goofle has too much personal info on me as it is (AdSense - home address, phone number, bank account #; AdWords - credit card number; Google Account - browsing & search history; GMail - personal contacts; etc.). If I also let Goofle track (and record and retain forever) my every move using my mobile phone, I'd be insane.
At least if Apple is spying on me, it's a separate company with limited information. They have some information on me, but it's far less than Google gathers in a day. I guess you could say Apple is the lesser of two evils.
But that's for another thread, we're kind of getting off-topic ;-)