# Harry's LapTimer Petrolhead

> Sports

Canonical page: [https://chrome-stats.com/d/id338257907](https://chrome-stats.com/d/id338257907)

## Overview

- **ID:** `id338257907`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Harald Schlangmann
- **Category:** Sports
- **Rating:** 3.80 / 5 (153 ratings)
- **Version:** 25.1.0
- **Last updated:** 2026-06-25
- **First published:** 2009-11-24
- **Size:** 80 MB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/harrys-laptimer-petrolhead/id338257907)
- **Website:** [http://www.gps-laptimer.de](http://www.gps-laptimer.de/)
- **Privacy policy:** [http://www.gps-laptimer.de/Privacy\_Policy.html](http://www.gps-laptimer.de/Privacy_Policy.html)

## Description

Harry's LapTimer Petrolhead is an advanced lap-timing tool for car enthusiasts. It records sensor data from iPhone devices (and compatible external sensors), merges them, and delivers insights to optimize your driving. With GPS-based timing across 1,300+ tracks and automated track setup, you get precise results and analytics that reveal performance patterns you didn’t know existed.

It also offers in-car video overlays and designed views to analyze every inch of your drive, plus online racing features like a Hall of Fame and real-time sector timing to compare with friends. The product ships in three editions—Rookie, Petrolhead, and Grand Prix—providing increasing levels of video, sensor, and analytics capabilities. Start simple with just an iPhone and expand with external GPS/OBD II sensors later. For full details and supported configurations, visit the official LapTimer site and join the user community.

## Rankings

- #124,480 — Overall

## Review summary

Harry's LapTimer offers a feature-packed toolset for track days with video overlays, GPS/OBD data, and multi-camera support, backed by active developer/community support. It is praised for depth, flexibility, and value, but is hampered by stability issues, inconsistent video export/ playback, track coverage gaps, Bluetooth/GPS connectivity problems, and refund/support friction. Overall, it remains a strong option for enthusiasts who can manage its reliability and coverage limitations.

### Pros

- Powerful data logging and video overlay with multi-camera support (iPhone, GoPro) and reference lap comparisons.
- Flexible hardware compatibility including external GPS, BLE OBD adapters, and various sensors.
- Strong developer/community support with active forums, extensive documentation, and regular feature updates.
- Accurate timer and rich telemetry that helps improve lap times and is considered great value for the price.
- Reliable performance at many tracks and evolving features, making it one of the best lap timer solutions.

### Cons

- Stability issues: frequent crashes, freezes, and screen lockups during or after sessions.
- Video export and playback problems: overlay workflows and saved videos can fail or be unviewable until reboot.
- Track coverage gaps and compatibility problems: not all tracks are supported, some require another app, and some tracks aren’t recognized.
- Connectivity and GPS accuracy problems: Bluetooth connections to devices can be spotty and GPS data can be off on certain tracks.
- Refund and support friction: difficulty obtaining refunds and inconsistent support responses in some cases.

## Similar extensions and apps

- [Harry's LapTimer To Go](https://chrome-stats.com/d/id1037706464) — 3.80 / 5
- [Harry's LapTimer Grand Prix](https://chrome-stats.com/d/id363556704) — 4.00 / 5
- [Harry's LapTimer Rookie](https://chrome-stats.com/d/id307688598) — 3.30 / 5
- [TrackAddict](https://chrome-stats.com/d/id632355692) — 4.50 / 5
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- [TrackAddict Pro](https://chrome-stats.com/d/id490135959) — 4.40 / 5
- [SpeedLap](https://chrome-stats.com/d/id6749648704)
- [Track Attack! Lap timer & maps](https://chrome-stats.com/d/id1557802135) — 4.90 / 5
- [LapVision Mobile](https://chrome-stats.com/d/id6771234635)
- [LapSmart](https://chrome-stats.com/d/id6464330432)
- [Laps: Track Day Logger](https://chrome-stats.com/d/id6788215699) — 5.00 / 5
- [Race Track LT](https://chrome-stats.com/d/id595092840) — 3.00 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/id338257907)