IM Tip Calculator

This app is a simple tip calculator. It is not too fancy just do what it should to do with out any unnecessary permissions.
This app is an upgrade of older version. I uploded this simple app because of the fact that some friends asked me to.
The app should be used in the following cases:
1. You are too drunk to calculate the needed amount of tip.
2. You are too lazy to calculate it.
You may contact me if you have any suggestions:
ido.nadler At gmail.com