A free app for Android, by Dev-Alex193a.

This free application is designed primarily for rooted devices, but also can be used by any Android user. To use this application, you need to root your phone and install BusyBox because it needs BusyBox to work. Rapid Reboot is an application that makes your life easier with its simple but very useful features. With this intuitive app, you can perform advanced actions in addition to the common mode, such as Restart and Shutdown. It adds different startup modes for your phone, like Hot Boot, Recovery, and Bootloader. You may even verify your phone’s root status, and this app has been tested on a variety of Android phones from various manufacturers.