HiCalc PRO - 12 Calculators in One (iOS) app for FREE

Award Winning Calculator Since 2007 THE BEST IN THE CLASS  ( Enjoy NEW iPad version 2.9 NOW! ) HiCalc PRO is an ultimate calculator and will make all your calculations become simpler than ever with 12 calculators: Basic, Scientific, Currency Converter, Unit Converter, Finance, Date - Time, Constants, Equation Solver, Statistics, Base conversion, Graph & Tip calculator.