3D Conversion Calculator is a free mobile application available on the Android platform, developed by voidware. As the name suggests, it is a calculator that works in real 3D. The application has a highly detailed 70's retro design that works like a real calculator with moving switches, keys and sound.

The calculator can be rotated 360 degrees, scaled, and moved in with your fingers. The buttons physically press with sound and the mode switch can be moved with your finger. Even the on/off button works! The screen tap resets the position ready for operation, and the tilt affects light reflections. It looks awesome on a pad and is definitely worth checking out.