Like any operating system, Android needs to be put through its share of cache cleaning, removing old programs and overall system cleaning to keep it functioning smoothly.
Although, there are various apps that provide you with one or the other function, Android Assistant stands apart by offering not just 1 or 2, but 18 useful functions within one app including a File manager, Batch app installer, App backup, System info, Apps 2 SD, Startup Manager and much more.