Harry's LapTimer Rookie

Harald Schlangmann

In-app purchases

About this app

Harry's LapTimer is the advanced tool for car enthusiast. It records all types of sensor data provided by your smartphone (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 750 predefined racing 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. 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? Recorded data can be analyzed using purpose designed views, making it easy to analyze and improve your driving performance. This includes several export formats including Google Earth.

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 smartphone in the beginning and add external GPS and OBD II sensors later, step by step, and as you need it. LapTimer currently comes as "LapTimer Rookie" - the entry level with all you need for lap timing; it is upgradable to LapTimer Petrolhead from within the app. LapTimer Petrolhead includes lots of video features as well as 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.

There are quite expensive stand alone solutions for track days available. Be smart and own the leading edge tool simply by using your Android smartphone. 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.

Please check http://www.gps-laptimer.de/Compatibility_Android.html for compatibility information and guidance on external sensors.

This is the Rookie Edition of Harry's LapTimer.

Ratings and reviews

Well, I didn't get too far setting this up. Went to Define User, then Vehicle, but Make only scrolls down to 'Nissan', no further. I guess I either have to buy a different car or a different app.

I autocross. Using a Galaxy S9 & OBDLink LX, I get no useful data. The times are very wrong and the course map is useless. I suppose that I need a $150 external GPS.

Does not currently work for me on Android 10 on pixel 2, crashes and will not open, have tried reinstalling and different versions

What's new

- added an Expert Setting to adjust the number of minutes recent fixes are displayed in Map View
- fixed a crash in BT LE implementation
- fixed a crash in CSV export
- fixed a bug returning gear + 1 instead of gear
- added support for Vgate vLinker FD+/MC+/BM+ OBD adapters
- fixed and improved VBO import
- updated toolchain to use Java 17/22 and Android SDK 33
- updated deep links to Android's latest verified schema