BusyBox Pro 50 is a Android App developed by Stephen (Stericson). It is a Tools kind of App with lots of features listed. This App already downloaded around 100,000 - 500,000 times from initial release. BusyBox Pro requires your device to have Android 50 to open this App. This particular version of the App released with lot of bug fixes and performance improvements. You can go ahead and Download BusyBox Pro 50 APK full version from the download page to install directly on your Android Device.
To Install BusyBox Pro, All you need to do is just copy stericson.busybox.donate.apk file into your Phone's SD card or Internal Storage, double tap copied file then click "Install" to manually Install onto the Android device.