Harry's LapTimer Petrolhead vs TrackKeeper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harry's LapTimer Petrolhead
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.
- 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
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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.
TrackKeeper
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.
- Live schedule management
- Real-time updates
- Color-coded graphics
- Run group tracking
- Classroom session alerts
- Track break notifications
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Follow Your Track Day Schedule Live with TrackKeeper. TrackKeeper is a convenient "At the Track" schedule manager and time tracking tool with a host of handy features. TrackKeeper is suitable to manage time and tasks more effectively and efficiently while you enjoy your track day. A must-have for any track day enthusiast, TrackKeeper keeps all data in sync across iOS mobile devices. TrackKeeper displays current time, the Run Group currently “On Track”, the Run Group that is “Up Next”, classroom sessions, and track breaks, all with easy to identify color graphics – all in real time. TrackKeeper also displays the full day’s schedule by Run Groups. This schedule automatically updates itself as the on track activities progress throughout the day displaying only time relevant information. TrackKeeper is a live online - at the track - schedule, compatible with all current iOS devices. No more missed announcements or lost paper schedules. TrackKeeper is always available online during track days and is always up-to-date with the latest schedule changes. TrackKeeper is a high tech, easy way to make sure you are always up-to-date and on time. TrackKeeper requires that your event organizers subscribe to the TrackKeeper service.
Screenshots
Verdict
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 (#101 vs unranked). On review sentiment, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 26, 2026 and October 24, 2026 respectively.
| Parameter | Harry's LapTimer Petrolhead | TrackKeeper |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | 3.8 (153 ratings) | 4.1 (8 ratings) — better |
| Positive reviews | 77.0% of reviews — better | 75.0% of reviews |
| Number of ratings | 153 — better | 8 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #101 — better | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 10.3 — better |
| Further details — not scored | ||
| Size | 80 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Harald Schlangmann | Marco Estrada |
Customer experience
Harry's LapTimer Petrolhead
TrackKeeper
Bugs and requests
Harry's LapTimer Petrolhead
Reported bugs
14 issues- 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
Show 9 moreShow fewer
- Screen freezes during lap analysis
- Video recording stops mid-session
- App locks up entire phone requiring hard restart
- Inaccurate speed and elevation data
- Inability to delete laps without app hanging
- Track loading failures and truncated track names
- Overlay settings reset after each use
- Incompatibility with newer iOS versions
- External GPS and OBD2 connection drops
Requested features
10 requests- 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
Show 5 moreShow fewer
- Call blocking during track sessions
- More Canadian track coverage
- Custom vehicle profile support for newer models
- Simplified user interface redesign
- Better export format compatibility for Mac users
TrackKeeper
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Harry's LapTimer Petrolhead
- Grand Prix Upgrade$9.99
TrackKeeper
No in-app purchases
Questions
Is Harry's LapTimer Petrolhead free?
Is TrackKeeper free?
Which has better reviews, Harry's LapTimer Petrolhead or TrackKeeper?
Do Harry's LapTimer Petrolhead or TrackKeeper have ads?
Which is updated more often, Harry's LapTimer Petrolhead or TrackKeeper?
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