All of these blockers use SFContentBlockerManager which only blocks ads for Safari and any apps that use SFSafariViewController (basically none).
Does anyone know if it's possible to do ad blocking through the NEFilterProvider classes? (https://developer.apple.com/library/ios/documentation/Networ...) This looks like it would block requests at a lower level, possibly for all Apps. Has anyone else tried digging into it?
It's not hard to supervise the device. Majority of users won't bother, but there's still market, I'm sure.
Another approach is to sell ad-less VPN. User will have to install custom root certificate, so VPN server can MITM secure connections in order to strip and block ads. It's certainly easier to setup.
Does anyone know if it's possible to do ad blocking through the NEFilterProvider classes? (https://developer.apple.com/library/ios/documentation/Networ...) This looks like it would block requests at a lower level, possibly for all Apps. Has anyone else tried digging into it?