It’s almost unheard of for Apple to comment on an individual iPhone app, but it’s just done so in response to the first porn app, just arriving on European iPhones.

A native pornography app for iOS is coming to the EU via the approved alternative app store AltStore PAL, made possible by Europe's Digital Markets Act

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and content measurement, audience insights and product development. List of Partners (vendors)