LapTrax - Advanced Lap Timer

4.2
234 reviews
10K+
Downloads
Content rating
PEGI 3
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About this app

Race anywhere, anytime!

World's first automatic, camera-based lap timing app for athletes, coaches, and RC vehicles, including vehicles/multirotors/quad/drones. Great for runners, swimmers, sports (hockey,soccer,etc), anywhere you run drills, training routines, sprints or races. NO TRANSPONDERS, GPS OR EXTRA HARDWARE NEEDED! (and NO ADS)

Works great on an older/spare device (Android 5/Lollipop and up)

4 Modes of operation:

Manual/Tap: record laps for 1-4 racers by screen-tap, or by using headphone/bluetooth device buttons
Motion Detection: use device camera to automatically record laps for a single racer
ColorTrax: use device camera to automatically record laps for 1-4 racers based on a unique color on each racer
Remote Link: listen to a race on your own device, great for spectators, or rc drivers

Using the advance, camera-based modes, you can register a race participant and the app will keep track of the lap times each time they pass by the camera, automatically. Track up to 4 colors or participants with one phone! Great for athletes, coaches, RC vehicles and more!

FEATURES:
- configurable starting countdown, including starting-gate lights
- announcements of lap time, lap number, and comments during race
- false-start detection, final-lap (bell-lap) sounds and announcement
- race summary announcements (fastest/slowest/average laptime)
- automatic start/restart mode when participants line-up at starting line/take their mark
- Virtual Racers: race against any previous racer by reloading their laptimes
- shareable race lap-time chart/graph, mix results from previous races
- Photo Scrapbook: automatically takes photos of racer as they pass the camera
- Bluetooth speaker and wired/wireless headphones compatible, listen to announcements, and start/stop/lap functions
- CAST-compatible, send audio/video to chromeCAST TV for big-screen, scoreboard experience

PERMISSIONS:
- Photos / Media / Files: for Photo Scrapbook, Save to Gallery option
- Storage: for Share Chart option
- Camera: for camera-based lap tracking options
- WIFI/Bluetooth/Network: for local remote link functions and crashlytics reporting

- BETA TESTERS NEEDED: join beta group

- click here for Protocol-Apps.ca website / discussion
- click here for RCGROUPS.COM online discussion forum


PRIVACY POLICY:
- Crashlytics reports do not contain any personal information
- No data or other information is transmitted, or sent to any servers
- User preferences/settings are stored on device
Updated on
Jan 7, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.2
221 reviews
John Finlay
January 26, 2024
I use lapTrax for my personal r/c race circuit. It is a good way to keep informed of lap times as well as lap counter. It will ring bells on the last lap if you set a number of laps to attain. That I find very nice , and you can run multiple cars if they are different colors from each other. You can also have it take action shots while you race by the Finnish line. I am working on a better setup for holding devices so I get better results with multiple cars . It's a really good start for price
1 person found this review helpful
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i wilko
January 16, 2024
Added this today, colour mode in low light doesn't work very well,as you would expect,,,,,,in a well lite room amazing, worked it out and it is ace and free , as long as you spend time setting it up amazing job. Recommended , to ad to your fun,,.the start lights are great. Just need to build a rig to hold phone above track about 12inchs high seemed to work the best 👍thank you
1 person found this review helpful
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A Google user
December 21, 2018
Fantastic App! I love the display and motion detection! Spoken lap times are tremendously valuable! Works flawlessly on S9+ I would like to see a YouTube video on how to use each function. A listing of laps and times at the end of a race would be nice. It only gives a partial list. I would love to see a Minimum Lap Time option to weed out false double lap captures like what can happen when your RC car crashes in front of the camera. Whomever it was that made this app, Great Work!!!
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Protocol Apps
January 10, 2019
thanks for the kind words, and suggestions! Be sure to check out the chart/graph feature by swiping left on the main screen. From the chart screen you can export the laptimes by clicking the colortrax/menu button. protocol

What's new

v2.67
- FIX: race summary announcement
- FIX: motion detection bug
- FIX: re-register background

v2.65
- NEW: auto-restore previous racers/settings
- NEW: unlimited laps/practice mode (set laps = 0)
- NEW: highlight fastest lap in Chart/Text view
- FIX: colortrax / set exposure (re-register background)
- FIX: save/delete charts with Android 10+
- BETA: enable camera light during race/setup (settings/beta)