This app provides the air density, density altitude, relative air density, dew point and relative horsepower. The input data can be automatically obtained from the GPS and the nearest weather station or manually introduced.

The application is made up of three tabs that are described next:

- Results: In this tab, the calculated air density, density altitude, relative air density (RAD), dew point and relative horsepower are shown. In addition, the parameters used for the calculations are showed (time, temperature, humidity, real and normalized pressure and altitude).

- Weather: you can set the values for current temperature, pressure, altitude and humidity. The values of this screen can be manually set or can be loaded by the application reading the data from the nearest weather station (from the GPS tab).

- GPS: This tab allows to use the location service (using GPS or WiFi) to get the current position and altitude, and connect to an external service to get the weather conditions of the nearest weather station (temperature, pressure and humidity).

The app let you use different measure units: ºC y ºF for temperatures, meter and feet for altitude, and mb, hPa, mmHg, inHg y atm for pressures.

What’s New

Version 1.6

Changes in texts and images

Ratings and Reviews

3.5 out of 5
13 Ratings

13 Ratings

der6464 ,

Good for quick SA

Basic but good for a quick situational awareness.

Ed Walkers ,

Not good

I work as a physicist. Results are calculated completely wrong. You calculate only dew point correctly :) When you calculating the actual (station) pressure, the formula you use does not take into account the temperature of the air. Further, this incorrectly calculated value is used for calculating almost all data. There are still many mistakes, You must find them yourself, I will not help you. I advise you not to work correctly.

Mehkft ,

Works Great

I use this tool for flying control line model planes and making sure we have the right mixture of nitro in our fuel. Having enough power to perform well determines if you will place in competition.
I also use it to check the humidity before painting my planes. Anything over 50% and the paint hold moisture causing problems.
So this is a double duty tool for me. I use it a lot.


Ingenieria del Software ISEnet S.L.
3.3 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Catalan, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese

Age Rating
Rated 4+
© 2014 Ingeniería del Software ISEnet S.L.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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