>> There are system-wide ad-blockers > Where? I'm talking about blocking ads and trackers in all apps, not just in web views. Apple allowed them for about a ye

>> There are system-wide ad-blockers > Where? I'm talking about blocking ads and trackers in all apps, not just in web views. Apple allowed them for about a year before reversing course. Lookup Adguard's blog posts for detailed history. Their app was fantastic (I've still got an old version installed which is still working great on iOS 12.1) and allowed the use of standard tracking lists for systemwide blocking / firewalling. My guess for why Apple reversed course is that they had no easy way of stopping spyware-masquerading-as-adblockers without blocking all.