Harry's LapTimer Petrolhead

Harry's LapTimer Petrolhead

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Logo of Harry's LapTimer Petrolhead

Harry's LapTimer Petrolhead: The Ultimate Tool for Data-Driven Performance

Transform your iPhone into a professional-grade telemetry system. Record precise lap times, analyze engine data, and create stunning video overlays for over 1,300 tracks worldwide.

Download on App Store

Publisher

Harald Schlangmann

Category

Sports

Downloads

197K+

User Rating

4.3/5

Total Ratings

700

Locales

8

Precision Performance

Discover the interface used by 197K+ users.

Startup screen of Harrys LapTimer Petrolhead Edition featuring a racer logo and a track use disclaimer

Startup screen of Harrys LapTimer Petrolhead Edition featuring a racer logo and a track use disclaimer

Race timer and telemetry dashboard in Harry's LapTimer Petrolhead app.

Race timer and telemetry dashboard in Harry's LapTimer Petrolhead app.

Real time racing telemetry data overlaid on a track video showing speed and lap times

Real time racing telemetry data overlaid on a track video showing speed and lap times

Harrys LapTimer Petrolhead app screen displaying engine RPM and vehicle performance data

Harrys LapTimer Petrolhead app screen displaying engine RPM and vehicle performance data

Racetrack map of Mosport International Raceway with color coded lateral acceleration telemetry data

Racetrack map of Mosport International Raceway with color coded lateral acceleration telemetry data

A detailed racing telemetry chart showing speed vs distance with a track layout map in Harrys LapTimer Petrolhead.

A detailed racing telemetry chart showing speed vs distance with a track layout map in Harrys LapTimer Petrolhead.

A detailed list of recorded lap times and speeds for Mosport and Spa Francorchamps tracks in the Harry's LapTimer app.

A detailed list of recorded lap times and speeds for Mosport and Spa Francorchamps tracks in the Harry's LapTimer app.

Interface of the Drag Simulator feature in Harry's LapTimer showing car physics and performance data

Interface of the Drag Simulator feature in Harry's LapTimer showing car physics and performance data

Master the Track with Precision Data

The tools that make this app stand out, trusted by 197K+ users.

⏱️

Automated Precision Timing

No manual triggers required. High-accuracy GPS automatically handles starts, finishes, and sector splits for over 1,300 global circuits.

🎬

Cinematic Data Overlays

Create stunning HD videos with real-time telemetry overlays—including speed, G-force, and track position—ready for YouTube or your car club forum.

🏎️

Advanced Performance Analytics

Connect external OBD II sensors to analyze braking points and engine data, allowing you to find those missing tenths of a second on every corner.

About the app

Everything you need to know about Harry's LapTimer Petrolhead.

Description

Harry's LapTimer is the advanced tool for car enthusiast. It records all types of sensor data provided by your iPhone/iPod/iPad (or external sensors), combines them, and makes them available to optimize your drive. Over time, you will get insights on your car and in your driving, not known before. LapTimer offers more than 1300 predefined tracks world wide. With its assistants, it is extremely easy to setup - just click your track and drive. It fully automates your lap timing using GPS, and presents the results to all kinds of media. You are not limited to track driving only. For example, you may define your home and working locations as a 'track', collect statistics on different ways chosen, and analyze / optimize the time used every day. Want to show your drive to your friends? LapTimer Petrolhead and above generates beautiful in car video recordings with all kinds of data overlaid, ready to be presented - e.g. on youtube. Even without video, recorded data can be analyzed using purpose designed views, making it easy to analyze and improve your driving performance. Using online racing, you can use LapTimer in competition. LapTimer offers a Hall of Fame, allows watching you and your friends on track - all in real time. Compare your sector times, braking / acceleration points, and learn from each other. You can start with your plain iPhone in the beginning and add external GPS and OBD II sensors later, step by step, and as you need it. LapTimer itself comes in three different editions: LapTimer Rookie is the entry level with all you need for lap timing; LapTimer Petrolhead is the advanced version including lots of video features, and LapTimer Grand Prix is the edition for professionals including Multi Cam recording, Health Kit integration, and advanced sensor and analytics functionality. Please note that functionality depends on your device, the LapTimer edition chosen, and sometimes even external sensors added (like OBD II). Please visit our web page to get the full story. All edition can be upgraded later, all editions come with native iPhone and iPad support. There are quite expensive stand alone solutions for track days available. Be smart and own the leading edge tool simply by using your iPhone and LapTimer. Besides the professional area, there is no known solution that offers more functionality than LapTimer does - across the market. As our ambition is to offer the best tool, LapTimer is enhanced continuously. Please visit http://www.gps-laptimer.de for detailed information on versions, FAQs / documentation, in depth technology background information, online racing, and supported device configurations. Join our user community on http://www.gps-laptimer-forum.de to be involved in future development - all with first class support.

Latest Version

25.0.1

Size

79.9 MB

First Released

Nov 24, 2009

Master Every Corner with Pro-Grade Data

Join the elite community of petrolheads using the most advanced lap timer on the market. Download now and start smashing your personal records today.

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