GPS Lap Timing + Datalogging + Video

Turn your smartphone into a powerful motorsports telemetry and video system.
See your lap times instantly, capture video and telemetry data, analyze laps and data, and impress your fans with video+data overlays!


Connect > Read > Edit > Write > Drive.

Quick and easy setup. Also works with compatible OBD-2 interfaces and vehicles to enable you to capture additional data channels like engine RPM, throttle position, temperatures, and more!
Offers easy WiFi transfer to RaceRender for even more video+data capability.




  • Road Course, Autocross, Rally, Drift, 4×4, and Drag Racing
  • Race Timing + Data Logging + Analysis + Video
  • Works Almost Anywhere! 1000+ Predefined Circuits, or Add Your Own
  • Integrated GPS Lap Timer & Display with Predictive Timing (Circuit mode)
  • Sector Split Timing & Theoretical Lap Time (Circuit mode)
  • High-Definition Video Recording + Data Overlay
  • Lap, GPS, G-Force, and OBD-II Data Logging
  • Driving Line Analysis, Statistics, Data Graphs, and Run / Lap Comparison
  • Optional Live Telemetry Streaming via (requires upgrade)
  • Also Supports External GPS and OBD-II Devices
  • OBD-II Live Monitor, Code Scanning / Reset, and Data Logging
  • Easily exports Data and Video to RaceRender

iPhone & iPad Version (iOS)

Free Edition provides most of the features at no cost, but is limited to storing three recordings, and does not include live telemetry. Pro Edition removes those limitations and gives you every feature currently available from this app. It is available either as a low-cost in-app purchase, or as a separate app.

Android Version

HP Tuners has made most of this app’s features available for free! For users desiring even more advanced capabilities, the Upgrades tab offers additional features that can be purchased.

Advisories and Disclaimers

Always drive safely. Intended for responsible use in a controlled motorsports environment. Use at your own risk. iOS version requires at least Apple iOS 12. iOS 14 or newer is recommended. Android version requires at least Android 5. Android 6 or newer is strongly recommend. Some features may require more than these minimums. Future releases may have different minimum requirements. Works on iPhone and compatible GPS-enabled Android, iPad, iPad mini, and iPod touch devices. Devices which do not contain suitable GPS hardware may work when combined with a compatible external GPS device. This app’s performance depends on good GPS reception conditions, and may vary. Features, capabilities, and pricing may differ between platforms and devices, and are subject to change at any time. OBD functionality is optional, and would require a supported OBD-II interface device and a compatible OBD-II compliant vehicle. Device compatibility differs between iOS and Android versions. Use of the Live Telemetry Streaming feature is optional and requires a premium upgrade. Services are provided as-is, and are subject to change or discontinuation at any time. Using this functionality has privacy implications, and will transmit your data over an Internet connection. Please read this app’s online documentation and the notices at before enabling its use. Use is subject to your wireless carrier and/or Internet provider’s data limits and rates.Continued use of GPS running in the background can dramatically decrease battery life.

Other Notices

Third-party product names, brand names, and/or depictions are trademarks of their respective owners.
They are used for compatibility information and demonstration purposes, and do not represent any endorsement or affiliation.
iPhone, iPad, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries.
App Store is a service mark of Apple Inc.
Android is a trademark of Google Inc.