The first thing you will notice when you set up 1Blocker X on an iOS device is its 7 toggles in Safari’s Content Blocker section of the Settings app. It’s a bit of a head-scratcher at first until you realize that this is what allows 1Blocker X to expand beyond the confines of its predecessor.
You see, iOS limits the number of blocking rules that can be implemented by an app to 50,000. That’s a lot of rules, but sadly not enough given the amount of junk on the Internet these days. As a result, it’s a limit that 1Blocker began to run into not long after it launched in 2015.
Finding a way around that hard limit required a rewrite of 1Blocker from the ground up. The result is 1Blocker X, an app with around three times as many blocking rules, room to grow, and enhanced flexibility for applying those rules.






