AdBlocker Ultimate is a free iOS content-blocking app for Safari that blocks ads, malicious domains known to spread malware and disables tracking. We have included a few extensive filters that offer decent protection against annoying, flashy ads, YouTube commercials, and more. Unlike other adblockers we do not have a whitelist for websites, advertisers or ad networks to show you unwanted ads. Blocking ads will reduce loading time of websites, decrease CPU and memory usage.