Density Altitude + 2.8

Instant and location accurate Density Altitude calculator/instrument app for iPhone and iPad that also calculates relative air density (RAD), altimeter setting, relative humidity, specific humidity (grains/lb), and more. This app is highly useful for pilots, especially in remote areas, and it has many other applications for engine tuning, racing, sports, and more.

• The app seamlessly integrates weather data, GPS, and your phone's onboard barometer to quickly and accurately calculate your density altitude, altimeter setting, relative air density, and more.
• All calculations take humidity into account, making them more accurate than the standard dry bulb approximation formula used by AWOS/ASOS systems.
• The app works anywhere and is great even without cellular connection, making it particularly useful in remote areas without access to ASOS/AWOS stations.
• With the location search feature, you can find atmospheric data (Density Altitude, etc.) at any point on Earth from anywhere.

Data Sensed and Calculated (all calculated with humidity):

• Density Altitude
• GPS Altitude
• Temperature
• Altimeter Setting
• Absolute Pressure
• Dew Point
• Relative Humidity
• Specific Humidity (grains/pound)
• Air Density
• Relative Air Density (RAD)
• Dyno Correction

The app is optimized for iPhone 6/6+ and newer iPads with built-in barometer and GPS support. If you have a cellular connection, the app will gather all the necessary data automatically. If you don't have a cellular connection, you only need to supply the outside air temperature. It does not require an internet connection, so it can be used anytime and anywhere.

This app is an excellent tool for pilots, drag racers, engine tuners, golfers, and anyone who needs to conveniently calculate their Density Altitude, Altimeter Setting, Relative Air Density (RAD), Specific Humidity, or Absolute Pressure. It is ad-free and does not include any in-app purchases.

Feedback is highly appreciated! You can email us your thoughts and suggestions at densityaltitude@rateofclimb.com.

Disclaimer: Density Altitude+ utilizes third-party weather and elevation data to calculate atmospheric measurements. However, Rate Of Climb does not guarantee the accuracy, completeness, timeliness, or proper formatting of the original sources (including the National Weather Service, FAA, and others). Users should always consult official sources for the most accurate and up-to-date information. This application is not intended for use in situations where failure could result in death, personal injury, or severe physical or environmental damage. Your use of this application is solely at your own risk.