Comparison

Harry's LapTimer Grand Prix vs Trackday Plot

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Harry's LapTimer Grand Prix

This app records and analyzes sensor data from your device to help you optimize driving performance. It offers automated lap timing, video recording with data overlays, and real-time online racing features. Track your progress on over 1300 predefined tracks or everyday routes.

Highlights
  • Sensor data recording
  • Automated lap timing
  • In-car video recording with data overlay
  • Real-time online racing and competition
  • Track and everyday route analysis
  • External sensor integration (GPS, OBD II)
Features
Read full 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.

About

Trackday Plot

Read full description

Trackday Plot - Racing data analysis made simple Get powerful insights from your racing sessions with Trackday Plot, the ultimate tool for analyzing track performance data with ease and precision. ONE APP, ALL DEVICES Trackday Plot works across all your Apple devices. Whether you're reviewing data on your iPhone between sessions, analyzing detailed charts on your iPad, or conducting comprehensive analysis on your Mac. EASY-TO-USE RACING ANALYSIS • Interactive Track Map - Visualize your racing line with GPS data overlaid on detailed track map • Video Recordings - Load your accompanied video file for the session logs • Segment Analysis - Break down your laps into segments, compare your laps performance at each waypoint • Charts Plot - Analyze the telemetry data on informative smooth charts, instantly spot the gains or mistakes • Extended Data Analysis Features - Easily pick data differences, limits and consequences through provided in-app tools UNIVERSAL FILE SUPPORT • VBO, CSV and GPX Files - Import data from any telemetry logger or racing app through VBO or CSV file. Logs from external GPS devices also supported • Open GoPro Video Directly - The app parses embedded GPS logs out of the box • Smart Parsing - The app automatically detects various data formats and supports wide range of standards NATIVE UI, SMOOTH PERFORMANCE • Smooth, Native Performance - Built with Apple's latest UI framework for buttery-smooth interactions and crisp, detailed visuals • Perfect for Every Device - Optimized layouts for iPhone, iPad, and Mac with device-specific interfaces • Light or Dark Theme - Seamless light and dark theme support that adapts to your preferences Perfect for racing drivers, track day enthusiasts, and motorsport professionals who demand the best tools for analyzing their performance data.

Screenshots

Harry's LapTimer Grand Prix4 screens
Trackday Plot4 screens

Verdict

The call

The clearest difference is price: Trackday Plot at Free against Harry's LapTimer Grand Prix's $27.99. Harry's LapTimer Grand Prix's advantage is iOS requirement (15.0 vs 26.0). On update cadence, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Trackday Plot is free to download; Harry's LapTimer Grand Prix costs $27.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Harry's LapTimer Grand Prix ships an update every 2 months, Trackday Plot every 3 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Harry's LapTimer Grand Prix versus Trackday Plot: the parameters behind the verdict, then further details
ParameterHarry's LapTimer Grand PrixTrackday Plot
Price$27.99Free — better
Rating4.0 (81 ratings) — better—
Positive reviews58.6% of reviews—
Number of ratings81 — better—
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Mac
Requires iOS15.0 — better26.0
Further details — not scored
Size78 MB5 MB
Age rating4+4+
DeveloperHarald SchlangmannVolodymyr Ivanyshyn

In-app purchases

None

Harry's LapTimer Grand Prix

No in-app purchases

None

Trackday Plot

No in-app purchases

Questions

Is Harry's LapTimer Grand Prix free?
Harry's LapTimer Grand Prix costs $27.99, with no in-app purchases.
Is Trackday Plot free?
Trackday Plot is free to download, with no in-app purchases.
Do Harry's LapTimer Grand Prix or Trackday Plot have ads?
Neither Harry's LapTimer Grand Prix nor Trackday Plot shows ads.
Which is updated more often, Harry's LapTimer Grand Prix or Trackday Plot?
Harry's LapTimer Grand Prix ships an update every 2 months, and Trackday Plot every 3 months. Most recently, Harry's LapTimer Grand Prix was updated on November 1, 2026 and Trackday Plot on October 25, 2026.

Other comparisons