Help me to choose the best name for IOS app.?

I finished the development of a calculator. I need your help in choosing a name!
Help me to choose the best name and say why do you like it. You should offer new name if you think that the names in the list are bad.

Application is a calculator. The main feature is the shifting color scheme. Change occurs after the breakup body of the calculator, and at the background can be seen painted inner parts of iPhone 5.

Add some screen shots:

Below I have given application names:
1. Crackulator
2. Pullastic calculator
3. Brake point calculator
4. Inside calculator
5. Pluck calculator

Thank you all!