RaceTrace provides lap times and driving performance analysis to motorsports enthusiasts. GPS is used to record the path of your vehicle around a race track, autocross course, drag strip, etc. Why rent or buy an expensive transponder-style lap timer when RaceTrace provides much richer information at a fraction of the cost?

The real-time recording display is designed to be highly visible, even in bright sunlight, and conveys information with just a glance. For example, every time you cross the start/finish line, your lap time will be displayed for a few seconds and the screen will flash one of four colors:

Purple - Your fastest lap ever at this track. Great job!
Green - Your fastest lap this session. Good.
Yellow - Faster than your last lap, but not your best.
Red - Slower than your previous lap.

The Speed vs. Distance plot shows your speed at every point on the circuit. You can derive a wealth of information from this data, including your braking points, top speeds, and apex speeds. Up to 4 laps can be compared to pinpoint areas for improvement. Lend your phone to a more experienced driver to get a good reference lap you can strive to match!

RaceTrace does not require an internet connection, but does requires GPS, either internal (iPhone) or external. External GPS receivers can provide better accuracy than the GPS unit built-into iOS devices. This becomes increasingly important in high-speed activities like automotive racing. An external GPS unit is especially recommended for close quarters events such as autocross and karting.

Note: Continued use of GPS running in the background can dramatically decrease battery life.