MTipCalc. Turn your mobile phone into a tip calculator for those awkward moments in the local pizzeria. $3.00.
mTipCalc is a handy calculator when out on the town. It calculates your restaurant bill’s tip at 15% and 20%. It can even split the bill and show you each person’s share (Note: Share amount is scrolled off-screen in screen shot.) If you put in the tax rate, mTipCalc, automatically calculates the tax and subtracts it from the tip amount.