AutoDens 4+

Optobyte AG

Designed for iPad

    • 4.8 • 153 Ratings
    • Free
    • Offers In-App Purchases



AutoDens does all the air density calculation at just one single touch.

Temperature, air pressure and humidity have affects to the performance of engines and aircrafts. AutoDens helps to get all the required parameters automaticly via the internet and calculates the current air density, relative humidity and air pressure. It also shows your geographic position, current temperature, dewpoint, physical elevation and the barometric pressure (QNH).

- automatic, airport and offline (manual) mode
- getting current location
- loading meteo-data (METAR) from the nearest airport
- calculating meteo-values for the current geo position (using up to 4 different airports nearby)
- shows METAR of nearest airport in raw format
- calculates density altitude, pressure altitude, relative humidity, air density and QFE
- choose your preferred units (celsius / fahrenheit, hectopascal/inches of mercury, feet/meters)
- database with more than 40'000 airports worldwide

AutoDens might help you as a efficient tool for calculating air density. But since it relays on a working infrastructure, it might not produce accurate results in all situations (internet connection could fail or some odd weather conditions might not act as it is calculated in ISA standard-atmoshpere). Do not use this as your single source for flight preparation.

What’s New

Version 2.2

This app has been updated by Apple to display the Apple Watch app icon.

Options added in the settings
minor bug fixed

Ratings and Reviews

4.8 out of 5
153 Ratings

153 Ratings

insrnc8781 ,

Great App

I am glad this app exists . Extremely helpful when putting together a fly no fly plan. Great as an extra piece of info for the weather check before flite.

Mr. Incredible ,

Useful, needs one update

I like this app and use it for helicopter flying. It can automatically pull airport METARs and calculate PA and DA for you, or you can manually input measurements to calculate. I would really find the app more useful if it would also output the deviation to international standard atmosphere. For example, “ISA+12C”


Very handy

I live and fly in high density altitudes. This app takes all the effort out of calculating DA. As a sceptic, I didn't blindly trust it, so I manually calculated DA for comparison several times. This app was right on each time.

App Privacy

The developer, Optobyte AG, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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