GPS Digital Speed Tracker Pro

GPS Digital Speed Tracker Pro is a simple and elegant speedometer application. GPS Digital Speed Tracker Pro uses the iPhone's built-in GPS system to show your current, maximum/top and average speed, as well as the heading direction, total distance, trip time and altitude in a single screen. This app is perfect for car driving/racing and biking.
Dashboard Layout
Shows you your trip statistics in real time: current speed, average and maximum speed, distance, moving (trip) time, elevation, cardinal orientation and also GPS accuracy information.
Landscape and portrait mode
Supports both landscape (horizontal) and portrait (vertical) mode with all the information you need.
Designed for both iPhone and iPad
GPS - Speed Tracker has been optimised for both iPhone and iPad and will look good on any of your devices.
Speed limit mode
Lets you set a speed limit value and every time you exceed that speed you will be warned with an audible and visual alert.
Car and Bicycle modes
Switch between car and bicycle modes to adjust the analogic speedometer maximum speed.
Supports Metric and Imperial systems
Choose between imperial (MPH) and metric (KPH/KMH) systems.
Color themes
Features 16 color themes, enabling you to customise your app to match your ride or your mood.

Notes:
NOT Compatible with WiFi only iPad or iPod Touch (these devices do not have GPS)
Drive safe, do not interact with your device while driving.
GPS is not always accurate due to device hardware sensor limitations, GPS - Speed Tracker will work best on wide open spaces. Tree/foliage, tall buildings (or other) cover may affect the GPS accuracy.
GPS usage will dramatically reduce your battery life.
Requires location services enabled for the application.