One rather effective way to get much higher (approx 99%) on iOS is to use a DNS over HTTPS provisioning profile (or app), and use a DNS server that blocks ads.
If you run your own server, you can get to 100% by turning on blocking for a couple of hosts not in standard blocklists that this test has highlighted.
The DNS setting applies to most or all apps, as far as I can see, as it's applied as a system level provisioning setting. iOS 15 gives more visibility of this in the UI, but it works in iOS 14.
If you run your own server, you can get to 100% by turning on blocking for a couple of hosts not in standard blocklists that this test has highlighted.
The DNS setting applies to most or all apps, as far as I can see, as it's applied as a system level provisioning setting. iOS 15 gives more visibility of this in the UI, but it works in iOS 14.