High Altitude makes it easy to determine the boiling point of water at your current GPS-given altitude, a valuable tool for high altitude hikers and campers. This digital altimeter also provides a direct altitude readout with color-coded accuracy, mean barometric pressure, and the relative percentage of oxygen relative to sea level. Units are both English and Metric.

This app also provides a way for you to easily see any of these values for any altitude up to 30,000 feet using a simple slider.

Finally, a mini reference guide to Acute Mountain Sickness is provided. At sufficiently high altitudes, the realtime display screen will show a button alerting you to the possibility of this illness, which will take you directly to the guide.