You're making a very flawed argument, because Google isn't going to share their users data with 3rd parties either. It's literally their business to gobble up

You're making a very flawed argument, because Google isn't going to share their users data with 3rd parties either. It's literally their business to gobble up as much data as they can get their hands on and sabotage anyone trying to do the same in order to become the only viable choice for Internet marketing campaigns. Apple only sells marketing on the app store, so their privacy violations only extend so far for now. I hope it stays like that, but my gut tells me that the water will continue to get muddier over the years. But that's a future issue.