This app uses a Minkowski Spacetime Diagram to show spacetime relationship between a stationary and a moving frame of reference. The user is able to select the speed of light factor and the zoom level for graphing the two frames of reference. The Minkowski diagram is often used to view the effects of relativity for two frames of reference moving a constant relative velocity. The app is intended to be an educational tool for those learning the basics of special relativity. Its very basic, but very helpful in understanding length contraction and time dilation.