Sum

Sum-o is a calculator, a clever beautiful calculator. Its interface has been hand crafted to enhance your experience using the full capabilities of the latest iOS. Sum-o is versatile; it reacts to on-screen gestures and device motion. Our favourite feature is the background which constantly and dynamically changes depending on your calculation. Warm colours indicate a positive answer while colder colours are displayed as negative. Right-handed? Left-handed? no problem - personalise the interface to your preference! Simple, practical and smart; go ahead and experience calculus differently with Sum-o. NEW in version 2.0 - introducing the percent operation - quicker to launch - more than 10 smart colourful themes to choose from!!! NEW in version 1.3 smarter than ever by constantly displaying the history of your current calculation! NEW in version 1.2 Sum-o on your iPad!!! NEW in version 1.1 swipe horizontally to show your calculations history!!!