What is the problem with touch screen calculators? Traditional calculators have always had physical buttons that you can feel without actually looking at them. Since there are no physical buttons on touch screen devices, you must look down at every button before you press it.

Introducing Glass Calculator. Using your device's built in camera, you can view the equation and the calculator, without taking your eyes off the screen. Use the convenient snapshot tool to enter longer equations without worrying about the device's position.