send link to app


4.2 ( 7632 ratings )
Dienstprogramme Produktivität
Entwickler Gas Strategies
2.99 USD

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!!!