Sports
Harry's LapTimer Grand Prix
Record permitted track sessions with GPS, sensors and video, then inspect lap data and supported overlays.
Choose for an established compatible track-day recording setup.
Grand Prix features add multicamera and advanced sensor analysis to basic lap timing.
Keep in mind: Accuracy depends on sensors, mounting and configuration; recorded comparisons must not encourage unsafe public-road driving.
Inside the app
Official product images
What you can do
- GPS laps and track presets
- Video overlays and multicamera options
- Sensor analysis and exports
Good for
- Experienced drivers reviewing authorized closed-course sessions.
Consider alternatives for
- People needing certified competition timing or real-time safety control.
Limitations & considerations
- Captured minimum: iOS 15.0.
- Accuracy depends on sensors, mounting and configuration; recorded comparisons must not encourage unsafe public-road driving.
Privacy & permissions
Video, GPS, optional Health data and public rankings reveal sensitive activity; review uploads and permissions.
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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