SIMPLE CALCULATOR --------------------- This simple calculator with a clear display and large buttons makes calculations easy. This app uses the basic functions of the calculator to make the simplest, best, free calculator in the play store. UNIT CONVERTER CALCULATOR ----------------------------------- Easily convert over 140+ units of measurement with this fast and free app. Simple, Powerful & Conversion Calculator is a beautifully designed universal app. Get the best easy to use metric and units converter for length, number, power, speed, temperature, time, weight, area, energy, and other popular measurement converters tool. Download free.