What's New

This app has been updated by Apple to display the Apple Watch app icon.

bug fix imperial units calculation
improvement of reading speed

App Description

This app is intended for entertainment purposes only and does not provide true speed measuring functionality. The readings are subjective to how well you calibrate and use the app.

Point your camera to the street perpendicularly, press calibrate, and start measure speeds by tracking the cars with your camera. Simple as that!

Enter your height, hold your phone to shoulder level (that is you normally do), point the thin red cross perpendicularly to the lane where cars are crossing and press CALIBRATE. Now you just have to follow the cars to get their speeds!

metric and imperial units.

iPhone Screenshots

(click to enlarge)

SPEED-gun screenshot 1 SPEED-gun screenshot 2

iPad Screenshots

(click to enlarge)

SPEED-gun screenshot 3 SPEED-gun screenshot 4

App Changes

  • October 07, 2015 Initial release
  • November 09, 2016 New version 1.1