The Cantrell Motorsports Lap Timer is the easiest to use GPS based lap timer, data recorder, video recorder, and performance analysis app available for smartphones and tablets.
The Pro version includes all the features that are In-App Purchases in this free version at a reduced price.
⎟ Main Features⎢
• Automatic recording; simply open the app to the Recorder screen and drive!
• HD Video on devices that support it [In-App Purchase]
• GoPro automatic start/stop control [In-App Purchase]
• Real-time display of speed, g forces, and lap times
• Trackside data analysis
• Lap and segment times
• Horsepower graph
• Automatic track mapping; no need for predefined track info
• High resolution GPS (up to 10Hz) using an external GPS module
• OBD2 data recording (using optional OBD2 modules) [In-App Purchase]
• Designed for auto-crossing, road racing, karting, motorcycle racing, bicycle racing and more...
• Data sharing via e-mail
• Export CSV for use with other apps such as Trackvision [In-App Purchase]
⎜ Overview of Operation ⎟
Recorded data is saved as Runs. Each Run starts when the vehicle exceeds 20MPH/33KPH and ends when the vehicle is moving slowly. The run includes several seconds of data before the recording trigger speed is reached. This way the start of an auto-cross run is included.
⎜ External GPS Modules ⎢
Due to limitations of the built-in GPS modules, the data may suffer from inaccuracy. An external GPS module is required to record accurate data for high speed driving events.
❖ Refer to the user guide for additional information:
❖ Also available for iPhone, iPod Touch and iPad
- Analysis: Ability to specify a smoothing filter for graphed data
- Video: Ability to specify data input (sensor) for each text data item