# Harry's LapTimer Petrolhead vs TrackKeeper

The clearest difference is price: TrackKeeper at Free against Harry's LapTimer Petrolhead's $19.99. TrackKeeper also leads on in-app purchases (none vs 1) and rating (4.1 vs 3.8). Harry's LapTimer Petrolhead's advantage is ratings volume (153 vs 8) and chart position (#108 vs unranked). On review sentiment, update cadence, ads and device support there is nothing between them.

TrackKeeper is free to download; Harry's LapTimer Petrolhead costs $19.99 up front. Harry's LapTimer Petrolhead sells 1 one-off in-app purchase. TrackKeeper asks for nothing beyond the download.

TrackKeeper holds the better App Store score, 4.1 against 3.8. That said, the two scores are not equally well evidenced: Harry's LapTimer Petrolhead has 153 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 77% of Harry's LapTimer Petrolhead's written reviews are positive against 75% of TrackKeeper's, so the app with the better star average is not the one people write more warmly about.

Harry's LapTimer Petrolhead ships an update every 2 months, TrackKeeper every 3 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Harry's LapTimer Petrolhead | TrackKeeper |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | [3.8 (153 ratings)](https://appshunter.io/ios/app/harrys-laptimer-petrolhead/id338257907/reviews) | **[4.1 (8 ratings)](https://appshunter.io/ios/app/trackkeeper/id1234766537/reviews)** |
| Number of ratings | **153** | 8 |
| Positive reviews | **77.0% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#108** | — |
| Size | 80 MB | 22 MB |
| Requires iOS | 12.0 | **10.3** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harald Schlangmann](https://appshunter.io/developer/307688601) | [Marco Estrada](https://appshunter.io/developer/1234766536) |

## What reviewers say

### Harry's LapTimer Petrolhead

[App page](https://appshunter.io/ios/app/harrys-laptimer-petrolhead/id338257907)

**Currently charting:** #108 Top Paid · Sports (US App Store)

This app is an advanced tool for car enthusiasts to record and analyze sensor data for optimizing driving performance. It offers automated lap timing, video recording with data overlays, and real-time online racing competition features.

**Highlights:** Records sensor data (GPS, OBD II), Automated lap timing with 1300+ predefined tracks, In-car video recording with data overlays, Real-time online racing and competition, Driving performance analysis and optimization, Step-by-step sensor integration

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grand Prix Upgrade | $9.99 | one-time |

**What reviewers like**

- 📊 Comprehensive data logging and telemetry analysis
- 🎥 Excellent video overlay capabilities with telemetry
- 💰 Affordable alternative to expensive professional systems
- 🛠️ Highly responsive developer with active support
- 🏁 Accurate lap timing when properly configured

**What reviewers complain about**

- 🐛 Frequent app crashes and freezes
- 🎮 Confusing and unintuitive user interface
- 📍 Unreliable GPS tracking without external devices
- 🔌 Poor Bluetooth connectivity with accessories
- 📹 Video export causes app malfunction

**Reported bugs**

- App crashes when overlaying videos
- Video playback fails in Photos app until phone reboot
- Lap data not recording at certain tracks
- GPS location not recognized at specific venues
- Timer fails to start or record laps inconsistently

**Requested features**

- Ability to pause timer between sessions
- Automatic video overlay for all laps without manual processing
- Better track variant identification in database
- Improved nearby track suggestions based on location
- Dark mode option


### TrackKeeper

[App page](https://appshunter.io/ios/app/trackkeeper/id1234766537)

Manage your track day schedule in real-time with this app. It displays current and upcoming run groups, classroom sessions, and breaks with color-coded graphics. Stay organized and on time for all track day activities.

**Highlights:** Live schedule management, Real-time updates, Color-coded graphics, Run group tracking, Classroom session alerts, Track break notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Harry's LapTimer Petrolhead free?

Harry's LapTimer Petrolhead costs $19.99, and also offers in-app purchases.

### Is TrackKeeper free?

TrackKeeper is free to download, with no in-app purchases.

### Which has better reviews, Harry's LapTimer Petrolhead or TrackKeeper?

TrackKeeper is rated higher. Harry's LapTimer Petrolhead averages 3.8 out of 5 from 153 ratings, while TrackKeeper averages 4.1 from 8 ratings.

### Do Harry's LapTimer Petrolhead or TrackKeeper have ads?

Neither Harry's LapTimer Petrolhead nor TrackKeeper shows ads.

### Which is updated more often, Harry's LapTimer Petrolhead or TrackKeeper?

Harry's LapTimer Petrolhead ships an update every 2 months, and TrackKeeper every 3 months. Most recently, Harry's LapTimer Petrolhead was updated on October 27, 2026 and TrackKeeper on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*