After the latest update, AdBlock just does not work, ads are all over the place in browser (Safari, Chrome) and apps. Have tried reinstalling the app with VPN profile, disable / enable, restarting phone...Not helped much in all the cases. If you are reading - please stay away from updating the app!
Update: did some more digging, earlier the VPN profile had the local IP address 127.0.0.1. With the update the Adblock Tunnel points to Google DNS 8.8.8.8 - opening the Ads address to be resolved and wide open to internet!!!!!
csshenoy2014 about AdBlock - block ads on iPhone, v3.0.0