Sports
Harry's LapTimer Petrolhead
Harry’s LapTimer Petrolhead combines GPS lap timing, sensor data and in-car video overlays for track review.
Choose it for a compatible, securely mounted track-day setup
Automatic track timing and synchronized video let enthusiasts inspect a session after driving.
Keep in mind: Sensor precision depends on the device and optional hardware; configure it while stationary and observe venue rules.
Inside the app
Official product images
What you can do
- GPS timing with predefined tracks
- In-car video and data overlays
- Optional external GPS and OBD sensor integration
Good for
- Track-day participants reviewing their own recorded sessions
Consider alternatives for
- Drivers expecting professional timing certification or a reason to compete on public roads
Limitations & considerations
- Captured minimum: iOS 15.0.
- Sensor precision depends on the device and optional hardware; configure it while stationary and observe venue rules.
Privacy & permissions
Routes, video and online racing can disclose drivers and locations; share deliberately and review service access.
Sources & review notes Updated Nov 11, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- US App Store developer description
Complete description, download price and compatibility metadata captured 2026-11-02.
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