Harry's LapTimer Petrolhead

Harry's LapTimer Petrolhead

Harald Schlangmann 0 · SGD 29.98

Screenshots

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.

Developer

What's New

Version 25.0.1 · 14 May 2025

- redesigned CarPlay startup - fixed a bug crashing LapTimer when started with CarPlay connected - some minor interface changes and fixes - switched to Inches for very precise accuracy displays

Ratings & Reviews

Recent Reviews

Brian Skelly

Google Play

Great app, but crashes somewhat frequently. Update: The app seems to have gotten more stable, which is great. Unfortunately under Android 11 it's not seeing GPS, which is a big problem. Update 2: looks like it was a Google problem because an Android patch fixed it. Update: I upgraded phones 2 years ago and ever since the input lag makes it unusable. I ran my old phone for a while but now it has the same issue. Unfortunate.

14 Apr 2026

Tim Nygaard

Google Play

had a bad day at AMP with this. didn't start properly when crossing finish line. didn't want to film and do data. it needs nashville superspeedway road course on it - they're opening up again. Another bad day at Nashville Superspeedway. No automatic start. No films. Sad.

8 Jun 2025

Pascal a

Google Play

Very nice app to analyze your laps or show them to your friends.

26 Dec 2022

Mike Naab

Google Play

App hasn't worked wince April 2022. Need to view footage for. Race incident and the app crashes as soon as I open it on a Samsung s21 ultra. Need to fix whatever bug it has

13 Aug 2022

Colin Kerwick

Google Play

Waste of money and if I could get my money back I would if I known sooner it wouldn't work when I was doing track days on my race bike I would never have downloaded this app

9 Sept 2021

More in Sports

3

Get API Access to 1.5 Million Apps

Access complete app metadata, rankings, reviews, and screenshots for your product and market intelligence workflows.