A very simple arithmetical calculator working with fractions and particularly suitable for 4th to 8th grade students. Fract Calculator allows you to both operate with integers and with fractional numbers, where you have the option to get a fraction in lowest terms or a floating-point representation as a result. This iOS app works fine with almost all iPhones (vers. 4S till 6s Plus) and iPads (vers. 2 to Pro). And furthermore this app is downloadable for free.