Most of us press calculator buttons without thinking much about them. The screen lights up, numbers appear, and mistakes ...

The Rechner Calculator is a $0.99 iOS app that replaces several of the normal calculator buttons with simple swipe gestures. The Rechner Calculator is a $0.99 iOS app that replaces several of the ...

Hard as we might try to avoid it, we occasionally still have to do math. Unless you’re a high school student with a graphing calculator, that usually means firing up a simple calculator program on ...