"Awsome!!! The best speed app on iphone" ★★★★★ by kurtonic Speed Box is a Speedometer for both your iPhone and iPad. It displays the current speed, distance, direction and altitude that you're traveling at. MAIN FEATURES: ★ MPH, KM/H and KNOTS ★ One app for both the iPhone and iPad ★ 9 Analog and digital speedometers ★ Maximum and average speed ★ Altitude ★ Digital compass ★ HUD display for speed in windshield like luxury cars ★ Odometer to measure distance traveled ★ Chart of the traveled speed and altitude ★ Warning signal when driving too fast ★ Export last 3 hours of data ★ Change maximum displayed speed on speedometer ★ Swipe finger over chart to display historic data ★ Display GPS accuracy by tapping the indicator in the top left corner I am very proud and happy to receive good reviews from our customers: ★★★★★ by Darekakuta "Just what I needed. My '58 chev's speedo doesn't work. This did the trick." ★★★★★ by Rawd "Great My 79 Firebird speedo only goes to 140 kmh. ;). This worked perfectly." ★★★★★ "Within 1 mile per hour +/- Great Job!" by Mirko9000 "Must have! Worth the money, works as advertised." SpeedBox was one of the very early Speedometer Apps for the iPhone. Take advantage of our great experience and refined algorithms that can get a much greater accuracy from the iPhone then a lot of other programs. We regularly update our application to make it even more accurate and usable. Please note that due to the iPhone's limited GPS reception quality the application works best at speeds from 10-20 km/h upwards. The "GPS strength" indicator in the top left corner should display a green dot. You can tap this indicator to display the current GPS accuracy. It should be under 20 meters. Modern cars often have windows that can lower the GPS reception quality. Please allow the application up to a minute to find enough satellites to work correctly. Users have already used our application to verify the accuracy of their car's speedometer or they tried measuring the speed they achieved while skiing. Can you come up with more ideas? How about measuring the speed of the airplane you travel with? Please note that the compass only works when you are moving. The iPhone does not have a built in compass, so it can't display the direction when you just turn the iPhone around. If you get a message to enable GSP, please do the following: Please go to Settings->General->Location Services and check if the little switch is set to "On" for SpeedBox as well as for "Location Services" in general. ATTENTION iPod touch users! Unfortunately this app doesn't work on the iPod touch and the iPad WiFI (without 3G), since these devices are missing a GPS! FEEDBACK: If you've got any wishes or suggestions for new features, please let us know with the contact form on this application's website (see link below). I will be more then happy to integrate features our users want. I am already working on the next update!