Arghhhh not another tip calculator app!. What makes this different?.
Well this is very simple. It has only two entry fields: bill amount and the percentage, which is not used all the time except when the percent needs to be changed. The app has only one view. That Is It. Add the tax/tip to the bill without any hassle. Misplaced your glasses or there is not enough light to read the computed value? Don’t worry, the displayed value is big enough for users with poor eyesight.