TWRP, the popular custom recovery for Android, has just released an app for installing updates to the recovery. If you’re like me (and completely rekt your phone with custom ROMs by flashing them over and over again), you’ll love this. Note that this app was created along with a company called P3, and it also includes one of their features called InsightCore or Network Statistics.
The app offers basic functions like installing the recovery and updates to /boot or /recovery, however it does require root to do the above mentioned functions. You can even set it to check for updates regularly. Be sure you know what you’re doing here, as the app offers to flash to the boot partition or the recovery partition(i.e. flash TWRP to /recovery, not /boot). The app is free to install and the development team has even provided a handy little instructions page. You can install it from here.