Change log for RaceChrono Pro v9.1.1 for iOS
Change log for RaceChrono v9.1.1 for iOS (29.7.2025): Added support for new Dragy models, Dragy Pro, Dragy DRG70 and Dragy DRG70-C Change log for RaceChrono v9.0.2 for iOS (8.5.2025): Added …
RaceChrono is a versatile lap timer, data logging and data analysis app designed especially for use in motorsports, replacing your traditional lap timers and data loggers. The RaceChrono Pro app also enables you to record videos and overlay them with the logged data.

RaceChrono apps have a strong following, currently over 100000 active users on iOS and Android devices. If you look around at pits during your race or track day, chances are that you’ll see someone using RaceChrono. Even many professionals, such as factory test drivers and race driving instructors, are known to use this app! No matter whether you ride motorbikes, drive go-karts or cars, on closed circuit or special stage tracks – this is the motorsports app for you.

RaceChrono app started its “life” in early 2007 as a fun hobby project for my new Nokia Series 60 phone. Fast forward major milestones: Top 10 app in Nokia’s Ovi Store with over a million downloads (2009), RaceChrono app for Android (2012), RaceChrono Pro for Android with video functionality (2014) and RaceChrono Pro for iPhone and iPad (2017).

RaceChrono has received funding from the European Regional Development Fund to develop next generation RaceChrono app that utilizes new technologies for data processing.
Change log for RaceChrono v9.1.1 for iOS (29.7.2025): Added support for new Dragy models, Dragy Pro, Dragy DRG70 and Dragy DRG70-C Change log for RaceChrono v9.0.2 for iOS (8.5.2025): Added …
Change log for RaceChrono v9.1.1 for Android (29.7.2025): Added support for new Dragy models, Dragy Pro, Dragy DRG70 and Dragy DRG70-C Fixed: Multipart standalone overlay export Change log for RaceChrono …
It is easiest to export a video with overlaid data straight from the app, but a video of the overlay can be also exported without a background video. This gives …
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