Driving Curve HUD app for iPhone and iPad

The coolest driving app "Driving Curve", its like Nike+ for car, measures your driving behavior and let you know your own flavor of driving. All you have to do is open the app and press start button, then start driving!

Driving Curve quantified your behavior and provide useful information for you to improve driving skills while having fun using the app. with our gaming and social features, drivers around the world enjoy the fierce competition to prove that who the driver is!

We recommend stable acceleration, gentle application of the brakes, and maintaining a steady pace whenever possible to keep wear and tear to a minimum and obtain a high score.

Main features 
▲ DRIVING CURVE SCORES YOUR DRIVING BEHAVIOR.
▲ High-tech, fiction movie style UI. 
▲ Build your own driving profile and create personal best records.
▲ From regional competition to world championship. Earn score and the respect of the world best drivers.
▲ Personal achievement system. Motivate yourself to improve driving skill and earn more badges.
▲ "FRIEND" function! Invite your friends into the world of Driving Curve!
▲ Show your driving performance directly on the route. 
▲ Voice remind for abrupt speed fluctuation. 
▲ Share your driving curve to Facebook. 

Note: 
▲ Continued use of GPS running in the background can dramatically decrease battery life. 
▲ The GPS uses signals from satellites. Tall buildings, tunnels, cloudy weather and other objects that block the view to the sky may make it difficult or impossible to determine the driver’s speed and route. 
▲ Speed deviation within 5kmh(3mph) is acceptable while driving.