Instant and location accurate Density Altitude calculator/instrument app for iPhone and iPad that also finds relative air density (RAD), altimeter setting, relative humidity, specific humidity (grains/lb) and more. Super useful for pilots, especially in the backcountry. Many other uses for engine tuning, racing, sports, etc. * 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. * Takes humidity into account in all calculations, making it more accurate than the typical dry bulb approximation formula used by AWOS/ASOS, etc. * Works anywhere. Great without cellular connection as well, which makes it all the more useful in the backcountry and far away from ASOS/AWOS stations. * Location Search: 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 quickest way to get your Density Altitude! On the iPhone 6/6+ and newer iPads, it will use the built-in barometer and GPS. If you're in cell range, you don't need to supply any data. If you're out of cell range, all you need to supply is the outside air temperature. Designed not to need an internet connection, so it will work anytime and anywhere you need it. Great tool for pilots, drag racers, engine tuners, golfers, or anyone who needs to conveniently find their Density Altitude, Altimeter Setting, Relative Aid Density (RAD), Specific Humidity or Absolute Pressure. No ads or in-app purchases. We love feedback! Email us at [email protected] Disclaimer: Density Altitude+ uses available third party weather and elevation data to calculate atmospheric measurements, but Rate Of Climb does not guarantee that the original sources (including the National Weather Service, FAA and others) have provided data that is accurate, complete, timely, or properly formatted. Users should always contact official sources for the most accurate and timely updates. The service is not intended for use in situations in which the failure of the service could lead to death, personal injury, or severe physical or environmental damage. Your use of this application is at your sole risk.
Great for car racing
Great for car racing.
Better GPS Accuracy
This has always been a great App, but depending on location, GPS altitude for me could sometimes be off. With this new App update, 2.6.3, it provides increased satellite accuracy. Every reading for me is now completely accurate, every single time. An excellent App now made better!
GPS elevation
GPS elevation doesn’t always update on the fly reliably. Example you check at bottom of a hike. Then gain 2,000’ elevation after hike. Check app again. GPS altitude/elevation doesn’t change. Don’t see how it can be accurate given this occurrence
Great app I like it!
I use it to backup my weather station data on my dyno as well as when I’m playing around with my car. 👍
Long Rang Precision
Works good. Doesn’t need to be perfect, just give an idea of whats going on. Good enough to right info on a dope card.
Make the Location changeable.
It would deserve a five star rating if I could manually change the location.
Awesome developer!!!
Ok so the fact that they added stuff for racers when someone asked is awesome! Only thing I would like to see is the barometric pressure. Other than that this app is pretty sweet. I’m a racer BTW
This version uses a new Elevation API provider since our previous Elevation API provider is shutting down. This only affects the location search feature, and accuracy should be even better! Follow us on Instagram @RateOfClimbIndustries. Thanks for the support!
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