Root is one of the fundamental concepts for Android, right from the inception of the operating system, to the point where it has today become the leading smartphone platform, evolving far beyond it was when it started. When it was started, gaining root access on Android wasn’t as simple as it has become today, and much credit for that goes to the Superuser apps developed by ChainsDD, and then the SuperSU by Chainfire. Both these apps have made it “super” easy to get Superuser access, but that, too, is dependent on a custom recovery. And when it comes to custom recoveries, nothing could perhaps ever gain as much popularity as Koush’s ClockworkMod.