SimpleCalc is a basic two-input calculator app. It's a simple calculator modeled on the classic electronic calculators that you use in your home or at your workplace. This calculator does not follow the mathematical order of operation. It calculates the answer according to the order of operation entered by the user. So, if you press the keys [2] [+] [2] [*] [2] , the answer will be 8 and not 6. If you are looking for a calculator that works with multiple inputs where 2 + 2 * 2 = 6, download our "OneCalc: All-in-one Calculator" app.