1)   MindSoft Mobile Utilities 2.0
This software can clean up your device memory recovering space, fix known problem by cleaning your device Windows Registry and manage your device startup programs, so you can speed up your device startup and avoid other startup problems.

 2)   MemoryCleaner 1.37
Get more RAM with just one click! MemoryCleaner allows you to enjoy more games, to easy get more free RAM and to speed-up your computer. MemoryCleaner offers you 4 levels of optimalization, which allow you to get exactly how many free RAM you need.

 3)   Uniture Memory Booster 6.1.0.5138
Uniture Memory Booster is a professional memory booster used for speeding up computer. It can free up wasted RAM automatically and compresses system memory to make processes run faster with greater stability.