Just to put this in perspective, Apple's yearly revenue is closing around 400B. 10B is in the "other" category in the revenue chart.
The ads are still only in the App store, where you need to specifically go and look for... apps. And you'll get ads for... apps.
You're not getting personalised ads for incontinence products because Apple doesn't know nor care that you have frequently visited a doctor specialising in said issues. Your phone does and Siri will suggest you the exact place as a destination if you start up maps in your CarPlay view.
Google and FB _will_ serve you said ads and with eery accuracy and speed. (I've visited a niche product store on my desktop browser, opened Instagram 5 minutes later and received ads for that exact niche)
The ads are still only in the App store, where you need to specifically go and look for... apps. And you'll get ads for... apps.
You're not getting personalised ads for incontinence products because Apple doesn't know nor care that you have frequently visited a doctor specialising in said issues. Your phone does and Siri will suggest you the exact place as a destination if you start up maps in your CarPlay view.
Google and FB _will_ serve you said ads and with eery accuracy and speed. (I've visited a niche product store on my desktop browser, opened Instagram 5 minutes later and received ads for that exact niche)