GameCIH 2 is a memory editing app, similar to programs like ArtMoney. Think of it somewhat like a Gameshark\Action Replay. You search for a value, be it a number or a name of a variable, and narrow your results slowly till you have 1 or 2 numbers left, and then you can freeze the values or modify them.
An example would be infinite health, unlimited money, etc. This works for several android games like Drag Race and more.
If you need anymore help check out the CIH forum here