Speedometer 55 GPS Speed & HUD Status

Under the open sky, within 5-10 seconds GPS indicator will become green and speedometer will start showing the speed. ** If you wonder why gps speedometer may show 3-5 mph (3-8 kmh) less than a car's speedometer, you can take a look here: (tomtom's discussion thread). *** And here is an amazing article explaining why GPS might show you 80ft (or -80! ) altitude when you are laying on the beach.  Full version of the speedometer gives you ability to work in background, GPS tracking, waypoints, trip cost computer, Siri shortcuts for applying speed limits and controlling track recording, 100+ customization options and more.  Be sure to check it out in the AppStore! * A bit of instructions: If speedometer doesn't show you the speed, just be sure to be under the open sky to have GPS signal.  GPS Black box gives you point by point time, speed, location and altitude data for the last 20 minutes of your travel.  Our speedometer shows your current location and you can share it easily (sms/text, email) with car assistance services, ambulance or friends.  When you go over a preset speed limit, the large digits change colour from green to red and the device emits a loud sound to alert you!  Retina graphics included. ∙∙ 000-999 SPEED AND LIMIT RANGE. MPH, KMH AND KNOTS.  A high quality Speedometer app with the same sophisticated brain inside as our paid version.  You can use Speedometer55GPSSpeedHUD on your iPhone 3GS, 4, or 4S as well as on any iPad with 3G. **App will not work properly on iPods and wifi only iPads as they don't have GPS chip (External GPS module is required). !  Our speedometer is the ideal watchdog companion no matter what journey you are going on!  Set speed limits with 4 fast and configurable presets.  Speedometer for iPhone and 3G-iPads.  Maximum, average speed, distance traveled. !  Integrated map shows your location and a tracking "tail" behind you. ∙∙ UNIVERSAL APP.  Please note that as with all GPS apps, continued use of GPS running in the background can dramatically decrease battery life.  Our built-in altimeter will provide you with accurate readings that indicate your height over sea-level.