1) Record sensor data from your phone. When you click record, the app starts logging all GPS, altimeter and accelerometer data to a CSV file. You can automatically sync these track files to https://baseline.ws/ using your google account. The data can be analyzed later to determine flight profiles for your BASE jumps and skydives.
2) Optimize your flight by speaking your speed and glide ratio. This feedback is helpful when learning to maximize wingsuit performance. Click the audible button to configure audible settings on your phone, including horizontal speed, total speed, and glide ratio.
3) Display your position, altitude and speed. On a map you can set a home location to assist with navigation, display you current trajectory and projected landing zone. BASEline also includes an analog-style altimeter, and real-time polar chart.
Disclaimer: User agrees to take full responsibility for the use of this software. Software and hardware can fail, and phone sensors vary wildly in quality between devices. Software is provided "as is," with no warranty of any kind. Skydiving and BASE jumping are dangerous, don't be stupid.
Free & Open Source: https://github.com/platypii/BASElineFlightComputer