Rechner Calculator App

Rechner is a a beautiful calculator app. But not only is it a calculator, it also really sets a precedent of how touch screen devices should operate.

Rechner is a predominantly gesture based app. Meaning that in order to add or subtract, instead of having another button to tap, Rechner uses a swipe. This type of interface, is incredibly clean and fluid.

But, Rechner is not perfect. It isn't completely intuitive so there is a small learning curve. And, more complex operations actually require the extra motions of swiping and then tapping.

This app is a great example of replacing buttons with gestures and creating something that is elegant for simple things. But one should be careful, in design, to ensure they are balancing aesthetics and function and always have a clear goal of what they wish to accomplish. Rechner is a great casual calculator for adding something offhand and that is what it was intended to do.