RaceChrono is a freeware, GPS based lap timing software for Nokia S60 mobile phones. It can be used to measure lap times on any vehicle (for exanple, motorbikes, bicycles, cars, water jets and quadbikes) or tracks.

RaceChrono uses GPS position data to determine lap times. In more detail, RaceChrono processes trap lines and every two consecutive positions as spherical vectors, and calculates intersections for these. Time stamps are calculated for the intersections, which will determine the calculated lap time.

Key features of RaceChrono for Nokia S60 include:

Lap timing:
With the Lap Timing feature, you can test and improve your track driving skills. RaceChrono supports both circuit and special stage–type tracks. This feature is not limited only to track driving; you can for example time your commute to work.

Performance testing:
With the Performance Testing feature, you can test your vehicle’s acceleration. You can select from various different tests, for example 0-100 km/h acceleration test and a quarter mile test. Remember not to try these tests on the public roads!

Exporting a session:
To export your session, open the session exporter from Traveled route > Options > Export, or if you are exporting a lap timing session, Lap times > Options > Export:

Settings:
Most important setting is the Memory Selection. You can select which memory you want your sessions and tracks to be saved and loaded.

The software contains only some tracks from around Finland. But you can create your own tracks by driving the the course of the track and recording the start, split and finish lines in the program.

Click here to download RaceChrono for Nokia S60 directly from your mobile device.