---
title: "Density Altitude & Air Density - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Air density, density altitude (DA) and relative air density (RAD), computed with the precision that tuning an engine or planning a takeoff actually needs.  WHY THIS APP  • The barometer in your iPhone"
---

# Density Altitude & Air Density — United States
> Dyno correction, RAD & jetting

![Density Altitude & Air Density App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/ac/5b/ef/ac5bef15-36b9-3180-16ee-72d8d1d5b608/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Ingenieria del Software ISEnet S.L](https://apptail.io/developer/ingenieria-del-software-isenet-sl-URl) (Spain)
**Category:** Sports
**Rating:** 4.2/5 (33 ratings)
**Price:** $2.99
**Bundle ID:** com.ISEnet.AirDensityMeter
**Store:** Apple App Store
**Country:** United States
**Version:** 2.2 (released 2026-10-10)
**Original Release:** 2014-03-20
**Languages:** English, Dutch, French, German, Italian, Japanese, Polish, Portuguese, Russian, Spanish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id838893833)
**AppTail Page:** [https://apptail.io/app/density-altitude-air-density-xODd/united-states](https://apptail.io/app/density-altitude-air-density-xODd/united-states)

## Density Altitude & Air Density Description
Air density, density altitude (DA) and relative air density (RAD), computed with the precision that tuning an engine or planning a takeoff actually needs.

WHY THIS APP

• The barometer in your iPhone: the real pressure where you stand, with no network.
• Density altitude, RAD or density on your widgets, Lock Screen and Apple Watch.
• Alerts when conditions change during a session, even with the app closed.
• Carburetor icing, read for a ground engine or for an aircraft.
• Session logging with chart, CSV export and iCloud sync.
• 4 dyno correction standards, so the factor matches your dyno sheet.
• The full CIPM equation used in metrology, not an ideal-gas shortcut.

WHAT IT CALCULATES

• Air density (kg/m³, lb/ft³, lb/gal US, gr/ft³)
• Density altitude
• Relative air density (RAD)
• Relative horsepower
• Dyno correction factor
• Dew point
• Virtual temperature
• Altimeter setting (QNH)
• Actual station pressure

WHO IT'S FOR

Jetting and carburetion. Size your jets on a kart, bike, scooter or race car for the conditions you actually have today, and build proper jetting charts instead of guessing.

Dyno testing. Apply the correction factor to compare runs from different days and know how much of the difference was the engine and how much was the air density.

Drag racing. Density altitude and RAD for the run, before you stage.

Aviation and RC flying. Density altitude and altimeter setting for takeoff performance, and the carburetor icing chart read the aviation way.

Precision shooting. Track air density through the day and adjust your loads as conditions move.

Golf. How far the ball actually carries in today's conditions.

LOG THE DAY

Record a session and see on a chart how conditions change through the day, with the change since the first reading. Export it as CSV, and find it on your iPad too through iCloud.

ALWAYS IN VIEW

Widgets on the Home Screen and Lock Screen, Apple Watch complications and, during a session, a Live Activity: your featured value with how old the data is. With the forecast, the widget moves ahead hour by hour.

ALERTS

During a session the app can let you know when air density moves by 0.5, 1, 1.5 or 2 % since the first reading, or when carburetor icing becomes a risk. Never at night, and never more than six a day.

CARBURETOR ICING

The temperature and dew point placed on the four-zone chart used in civil aviation. For a kart, bike or dyno, only the full-throttle risk; for an aircraft, the four zones with their aeronautical reading.

SHARE A READING

Send a reading by link, file or QR code. Whoever has the app opens it in the app; whoever doesn't, in the browser.

WHERE THE DATA COMES FROM

Three sources, and you always know which one you are on. The barometer built into your iPhone, for the real pressure right where you stand. The nearest weather station, for temperature, pressure and humidity. Or type it all in by hand. The hourly forecast comes from Apple Weather.

UNITS

Pressure in mb, hPa, mmHg or inHg. Temperature in ºC or ºF. Altitude in metres or feet. Density in kg/m³, lb/ft³, lb/gal (US) or gr/ft³ for precision shooting.

PRIVACY

No account, no analytics, no tracking. Your sessions stay on your device and, if you turn it on, in your own iCloud, which nobody else can read. Your location is used only to look up the weather: rounded to about 110 m, it goes to the ISEnet weather service and, for the forecast, to Apple Weather, never linked to you.

Available in 10 languages: English, Spanish, German, French, Italian, Portuguese, Russian, Japanese, Polish and Dutch.

## Density Altitude & Air Density Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/24/f2/47/24f2479a-16bd-9bc0-ba56-2dd69738078d/01-iphone-65-resultados.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/1e/35/1b/1e351b53-1b9e-641d-673d-229ee56eb1d2/02-iphone-65-lectura.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e5/08/66/e508663a-c1ff-2817-b178-7a6d4e900e4f/03-iphone-65-widgets.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/6d/4f/b4/6d4fb4db-63a2-2501-a2f5-7b1345d34ed2/04-iphone-65-historial.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a7/94/b7/a794b7ac-baac-a453-b13e-508742bbb449/05-iphone-65-hielo.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/51/71/a3/5171a367-d411-d475-2346-455816575e44/06-iphone-65-meteo.png/1242x2688.png)

## Density Altitude & Air Density Rating Breakdown in United States
- 5 stars: 21 (64%)
- 4 stars: 7 (21%)
- 3 stars: 0 (0%)
- 2 stars: 1 (3%)
- 1 stars: 4 (12%)

## Density Altitude & Air Density Reviews in United States

### ****- "Use current data."
Not sure which update it was. But the area you click on to update the current data barely fits on the screen and you can barely update it. I phone 8. Other than that 100%👍🏼🏁
-- JIMFAB MACHINE, 2023-04-28

### ***** "Great tool"
Compared to my Longacre air density gauge the results are very reliable. I use this app for jetting carbs and I am really happy with it.
-- BobbyKer67, 2020-12-19

### ***** "Easy to use and complete"
Perform all necessary calculations in an easy way. I use it to tune engines and build jetting charts and I find it very useful
-- Gregory Faircloth, 2020-12-15

### ***** "Perfect for getting air density"
I use the app as a RAD gauge and it works really good. Worth the money.
-- Mark80Jan, 2020-12-08

### ***** "Great"
I use this for Benchrest shooting to adjust my loads as match progresses during the day. Still learning but is working well
-- shooterjm, 2020-10-31

### ***** "Super👀"
Works well, A+++
-- redlandflyer, 2016-10-16

### ***-- "Hero 1st class"
Seems to work great with WiFi internet connection.  Won't get weather using cellular data with  no WiFi available.
-- tom#83, 2016-05-31

### ***** "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.
-- DonisPOTUS, 2016-01-08

### ***** "Nice app"
Great app for drag racing - if it were to be able to track and graph over a time like a day at track we think it would replace equipment costing thousands for average racer
-- Bullet abq, 2015-10-11

### ***-- "Easy to use"
This will no doubt help me keep my scooter jetting in check. One thing that could be addressed is that the altitude box in the weather tab can't be edited, at least on a 4S 7.1.1. No matter what I enter it goes to -150 in feet or -40 in meters.
-- TheMajekalBum, 2014-06-14

[View all Density Altitude & Air Density reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Density Altitude & Air Density Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Belarus | Sports | #18 |
| Top Paid | Nigeria | Sports | #27 |
| Top Paid | Argentina | Sports | #58 |
| Top Paid | Mexico | Sports | #70 |
| Top Paid | New Zealand | Sports | #71 |
| Top Paid | Brazil | Sports | #73 |
| Top Paid | Lebanon | Sports | #76 |
| Top Paid | Dominican Republic | Sports | #82 |
| Top Paid | United States | Sports | #87 |
| Top Paid | Chile | Sports | #88 |
| Top Paid | Ukraine | Sports | #91 |
| Top Paid | Colombia | Sports | #101 |
| Top Paid | Spain | Sports | #102 |
| Top Paid | Indonesia | Sports | #107 |
| Top Paid | United Arab Emirates | Sports | #122 |
| Top Paid | Australia | Sports | #123 |
| Top Paid | Sweden | Sports | #132 |
| Top Paid | South Africa | Sports | #132 |
| Top Paid | Saudi Arabia | Sports | #136 |
| Top Paid | Romania | Sports | #138 |
| Top Paid | Peru | Sports | #138 |
| Top Paid | Portugal | Sports | #144 |
| Top Paid | Russia | Sports | #147 |
| Top Paid | Thailand | Sports | #152 |
| Top Paid | India | Sports | #153 |
| Top Paid | Italy | Sports | #163 |
| Top Paid | Israel | Sports | #176 |
| Top Paid | Norway | Sports | #191 |
| Top Paid | United Kingdom | Sports | #194 |
| Top Paid | Taiwan | Sports | #210 |
| Top Paid | Hungary | Sports | #219 |
| Top Paid | Canada | Sports | #220 |
| Top Paid | Kuwait | Sports | #220 |
| Top Paid | Denmark | Sports | #231 |
| Top Paid | Switzerland | Sports | #235 |
| Top Paid | France | Sports | #238 |
| Top Paid | Ireland | Sports | #247 |

## Density Altitude & Air Density Discovered Keywords
- motor genie® calculator
- air density
- andrade

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## Density Altitude & Air Density Available In
- [United States](https://apptail.io/app/density-altitude-air-density-xODd/united-states)
- [Australia](https://apptail.io/app/density-altitude-air-density-xODd/australia)
- [United Kingdom](https://apptail.io/app/density-altitude-air-density-xODd/united-kingdom)
- [France](https://apptail.io/app/density-altitude-air-density-xODd/france)
- [Mexico](https://apptail.io/app/density-altitude-air-density-xODd/mexico)
- [Spain](https://apptail.io/app/density-altitude-air-density-xODd/spain)
- [Italy](https://apptail.io/app/density-altitude-air-density-xODd/italy)
- [Saudi Arabia](https://apptail.io/app/density-altitude-air-density-xODd/saudi-arabia)
- [Norway](https://apptail.io/app/density-altitude-air-density-xODd/norway)
- [Brazil](https://apptail.io/app/density-altitude-air-density-xODd/brazil)
- [Canada](https://apptail.io/app/density-altitude-air-density-xODd/canada)
- [Chile](https://apptail.io/app/density-altitude-air-density-xODd/chile)
- [China](https://apptail.io/app/density-altitude-air-density-xODd/china)
- [Colombia](https://apptail.io/app/density-altitude-air-density-xODd/colombia)
- [Czechia](https://apptail.io/app/density-altitude-air-density-xODd/czechia)
- [Germany](https://apptail.io/app/density-altitude-air-density-xODd/germany)
- [Denmark](https://apptail.io/app/density-altitude-air-density-xODd/denmark)
- [Dominican Republic](https://apptail.io/app/density-altitude-air-density-xODd/dominican-republic)
- [Algeria](https://apptail.io/app/density-altitude-air-density-xODd/algeria)
- [Ecuador](https://apptail.io/app/density-altitude-air-density-xODd/ecuador)
- [Estonia](https://apptail.io/app/density-altitude-air-density-xODd/estonia)
- [Egypt](https://apptail.io/app/density-altitude-air-density-xODd/egypt)
- [Finland](https://apptail.io/app/density-altitude-air-density-xODd/finland)
- [Grenada](https://apptail.io/app/density-altitude-air-density-xODd/grenada)
- [Greece](https://apptail.io/app/density-altitude-air-density-xODd/greece)
- [Hong Kong SAR China](https://apptail.io/app/density-altitude-air-density-xODd/hong-kong)
- [Honduras](https://apptail.io/app/density-altitude-air-density-xODd/honduras)
- [Croatia](https://apptail.io/app/density-altitude-air-density-xODd/croatia)
- [Hungary](https://apptail.io/app/density-altitude-air-density-xODd/hungary)
- [Indonesia](https://apptail.io/app/density-altitude-air-density-xODd/indonesia)
- [Ireland](https://apptail.io/app/density-altitude-air-density-xODd/ireland)
- [Israel](https://apptail.io/app/density-altitude-air-density-xODd/israel)
- [India](https://apptail.io/app/density-altitude-air-density-xODd/india)
- [Iceland](https://apptail.io/app/density-altitude-air-density-xODd/iceland)
- [Japan](https://apptail.io/app/density-altitude-air-density-xODd/japan)
- [South Korea](https://apptail.io/app/density-altitude-air-density-xODd/south-korea)
- [Kuwait](https://apptail.io/app/density-altitude-air-density-xODd/kuwait)
- [Cayman Islands](https://apptail.io/app/density-altitude-air-density-xODd/cayman-islands)
- [Kazakhstan](https://apptail.io/app/density-altitude-air-density-xODd/kazakhstan)
- [Lebanon](https://apptail.io/app/density-altitude-air-density-xODd/lebanon)
- [Luxembourg](https://apptail.io/app/density-altitude-air-density-xODd/luxembourg)
- [Latvia](https://apptail.io/app/density-altitude-air-density-xODd/latvia)
- [North Macedonia](https://apptail.io/app/density-altitude-air-density-xODd/north-macedonia)
- [Malta](https://apptail.io/app/density-altitude-air-density-xODd/malta)
- [Poland](https://apptail.io/app/density-altitude-air-density-xODd/poland)
- [Armenia](https://apptail.io/app/density-altitude-air-density-xODd/armenia)
- [Argentina](https://apptail.io/app/density-altitude-air-density-xODd/argentina)
- [Austria](https://apptail.io/app/density-altitude-air-density-xODd/austria)
- [Azerbaijan](https://apptail.io/app/density-altitude-air-density-xODd/azerbaijan)
- [Belgium](https://apptail.io/app/density-altitude-air-density-xODd/belgium)
- [Bulgaria](https://apptail.io/app/density-altitude-air-density-xODd/bulgaria)
- [Bahrain](https://apptail.io/app/density-altitude-air-density-xODd/bahrain)
- [Brunei](https://apptail.io/app/density-altitude-air-density-xODd/brunei)
- [Belarus](https://apptail.io/app/density-altitude-air-density-xODd/belarus)
- [Switzerland](https://apptail.io/app/density-altitude-air-density-xODd/switzerland)
- [Ukraine](https://apptail.io/app/density-altitude-air-density-xODd/ukraine)
- [Uzbekistan](https://apptail.io/app/density-altitude-air-density-xODd/uzbekistan)
- [Venezuela](https://apptail.io/app/density-altitude-air-density-xODd/venezuela)
- [Vietnam](https://apptail.io/app/density-altitude-air-density-xODd/vietnam)
- [South Africa](https://apptail.io/app/density-altitude-air-density-xODd/south-africa)
- [Malaysia](https://apptail.io/app/density-altitude-air-density-xODd/malaysia)
- [Nigeria](https://apptail.io/app/density-altitude-air-density-xODd/nigeria)
- [Netherlands](https://apptail.io/app/density-altitude-air-density-xODd/netherlands)
- [Nepal](https://apptail.io/app/density-altitude-air-density-xODd/nepal)
- [New Zealand](https://apptail.io/app/density-altitude-air-density-xODd/new-zealand)
- [Panama](https://apptail.io/app/density-altitude-air-density-xODd/panama)
- [Peru](https://apptail.io/app/density-altitude-air-density-xODd/peru)
- [Philippines](https://apptail.io/app/density-altitude-air-density-xODd/philippines)
- [Pakistan](https://apptail.io/app/density-altitude-air-density-xODd/pakistan)
- [United Arab Emirates](https://apptail.io/app/density-altitude-air-density-xODd/united-arab-emirates)
- [Portugal](https://apptail.io/app/density-altitude-air-density-xODd/portugal)
- [Paraguay](https://apptail.io/app/density-altitude-air-density-xODd/paraguay)
- [Romania](https://apptail.io/app/density-altitude-air-density-xODd/romania)
- [Russia](https://apptail.io/app/density-altitude-air-density-xODd/russia)
- [Sweden](https://apptail.io/app/density-altitude-air-density-xODd/sweden)
- [Singapore](https://apptail.io/app/density-altitude-air-density-xODd/singapore)
- [Slovenia](https://apptail.io/app/density-altitude-air-density-xODd/slovenia)
- [Slovakia](https://apptail.io/app/density-altitude-air-density-xODd/slovakia)
- [Thailand](https://apptail.io/app/density-altitude-air-density-xODd/thailand)
- [Tunisia](https://apptail.io/app/density-altitude-air-density-xODd/tunisia)
- [Türkiye](https://apptail.io/app/density-altitude-air-density-xODd/turkey)
- [Taiwan](https://apptail.io/app/density-altitude-air-density-xODd/taiwan)
- [Lithuania](https://apptail.io/app/density-altitude-air-density-xODd/lithuania)
- [Senegal](https://apptail.io/app/density-altitude-air-density-xODd/senegal)
- [Angola](https://apptail.io/app/density-altitude-air-density-xODd/angola)
- [Jamaica](https://apptail.io/app/density-altitude-air-density-xODd/jamaica)
- [Sri Lanka](https://apptail.io/app/density-altitude-air-density-xODd/sri-lanka)

---

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