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

SPEED gun PRO alternatives

Net Speed Pro - Mobile Internet Performance Tool

Net Speed Pro is a IT utility app to determine your TRUE Internet download, upload and latency (response) or ping with one-tap ease. After the test, the app will show your relative speed rating compared to other users in a simple to understand star rating graphics. Unlimited on-the-go testing.

  • size 16.0 MB

My HUD - Speedometer

MyHUD is free Heads Up Display (HUD) for your car. Replace or enhance your driving experience without installing expensive updates in your car. Install this app now - you will not regret it

  • size 23.7 MB

Speed Tracker, HUD display and Trip Computer

Speedometer and Acceleration is the most elegant and unique combination of GPS speedometer, acceleration meter and Trip computer in just one application. Guys, Make sure you have enabled the app to access location serivces on your device. To enable - Settings> General> Location Services

  • rating 4.09999
  • size 63.6 MB

Full Power Battery+

Launch the application and connect the charging cable. Phone will inform you when its charged to 100%.To disable the sound signal, disconnect the charging cable from the device. 10 ringtonesChoose a sound signal that you like.

  • rating 3.0
  • size 23.8 MB