On Sale: BusyBox Pro for Root Users Costs Only $1.99
Advanced Android users that have their device rooted must know that to take full advantage of the extended permissions you need to have BusyBox installed. With BusyBox installed on your rooted Android device it will give you some additional handy LINUX / UNIX based commands. You need BusyBox installed because some commands are not available to you and you may need them for some root level tasks.
While not all root apps require that you have BusyBox on your device, some more advanced tools will require it. Titanium Backup for one is an app that will not function without BusyBox. There are some apps on the Play Store that you could use to install it for free but BusyBox Pro provides additional tools and no ads. It includes a Backup feature (for safer installs), uninstall feature, Advance Smart install feature, the ability to hand pick the applets you want, safety check for missing applets on start, and better overall support.
It has also been reported by the developer that the free version of BusyBox will not get all the updates that the Pro version offers. Get BusyBox Pro for only $1.99, $3 off the regular price, from the Play Store.