Well, they aspire to. Their ad network is large and growing.

I've not seen numbers and I'm skeptical that it's growing, but the revenue can't be more than a rounding error on their books.

Lumping Apple with Google in terms of data gathering is misleading at best.

You mean Apple, the company that until recently forced you to give them cc data in order to install any app on your device, regardless of the app being a paid or free one?

Apple wants your money, not your data (as further evidenced by the fact that they just killed iAds).