100,000 - 500,000 downloads

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RaceChrono™ is a GPS based lap timing software. It can be used for almost all types of racing and outdoor sport. RaceChrono has rich lap analysis features suited especially for motor sports, making it a great alternative to traditional car, karting and motorcycle lap timers.

RaceChrono has following major features:
• Lap timer for circuit and point-to-point tracks (both standing start and flying start is supported)
• Gauges for viewing all live data
• Analysis mode with smooth scrolling configurable map and graphs
• Lap list with optimal lap time calculation
• Library of over 1000 pre-made racing circuits
• Exporting to VBO, CSV and NMEA formats
• Intuitive track editor for creating your own track maps
• Virtually unlimited amount of saved sessions
• Virtually unlimited session length
• Smooth graphics especially on devices that support hardware acceleration
• Bluetooth GPS support up-to 20hz (for superior accuracy over internal GPS)
• Internal GPS support

Available through in-app-purchases:
• Support for VBOX Sport, RaceDAC and OBD-II readers
• Predictive lap timing
• Time difference and time gain channels

Notice, devices with Android 2.2 will get an older version of the application with slightly fewer features

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Recently changed in this version

Change log for v3.16:
- Added 'Navigate' button to track view. Opens Google Maps turn-by-turn guidance.
- Fixed: Purchased items not available if no network connection

Change log for v3.10-v3.15:
- Fixed crash when opening graphs on some devices
- Fixed "white screen" hang at startup on some devices.
- Added shop screen to sell RaceChrono Pro and in-app purchases

Comments and ratings for RaceChrono
  • (75 stars)

    by vasos1973 on 04/08/2012

    I tried it a few days ago at Athens Circuit (Megara) in Greece and I was very dissapointed as it didn't work at all. Afterthat I sticked with my previous gps lap timer that works perfect for my needs.

  • (75 stars)

    by Lee McKenna on 03/07/2014

    Doesn't work. Waste of time. Rip off.

  • (75 stars)

    by Michael Mulvaney on 28/06/2014

    Now it never loads tracks

  • (75 stars)

    by Robin H on 27/06/2014

    Great app, accurate and really useful. Doesn't make up for my driving but as a GPS lap timer it is brilliant. Keep up the great work.

  • (75 stars)

    by Chris Williams on 26/06/2014

    Best lap timer

  • (75 stars)

    by Mark O'Byrne on 26/06/2014

    I've tried many other GPS based lap timing apps, this is the best and most stable by far. Used at home and in Europe it works flawlessly. I have compared it many times to a My Laps Transponder and is always accurate to within 1/10 second. Just allow the GPS to find itself then leave it running all day. For an extra special treat, output the data to one of the many free video overlay software packa

  • (75 stars)

    by Ivan Kalajdzic on 25/06/2014

    Love this app!