Apple has an ad network, which has special privileges on iOS. Are you saying they don't provision ads on their ad network based on all the special access they have? They'd be kind of crazy not to, they've secured themselves a very valuable information monopoly here, and it's pretty obvious why...
They don’t have an ad network in any meaningful sense, because there’s no distribution network for their ads. The ad targeting everyone is talking about is only for ads for apps on the App Store. Not in third party apps or web sites and such. That’s why I compared it to Amazon targeting ads in their own store.
