--- title: "Density Altitude & Air Density - Reviews, Revenue and Downloads in United Kingdom | 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. WHAT IT CALCULATES • Air density (kg/m³, lb" --- # Density Altitude & Air Density — United Kingdom > Dyno correction, RAD & jetting ![Density Altitude & Air Density App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/43/79/f7/4379f770-d06a-69ae-a0eb-6cf9a8301cb4/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:** 4.0/5 (3 ratings) **Price:** £2.99 **Bundle ID:** com.ISEnet.AirDensityMeter **Store:** Apple App Store **Country:** United Kingdom **Version:** 2.1 (released 2026-08-19) **Original Release:** 2014-03-20 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/gb/app/app/id838893833) **AppTail Page:** [https://apptail.io/app/density-altitude-air-density-xODd/united-kingdom](https://apptail.io/app/density-altitude-air-density-xODd/united-kingdom) ## 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. WHAT IT CALCULATES • Air density (kg/m³, lb/ft³, lb/gal US) • 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. For model aircraft, the right nitro mix for the day's conditions. 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 how conditions change through the day on a chart, with the change since the first reading. Export it as CSV and cross it with your dyno sheet or your load book. POWER CORRECTION Pick the standard your dyno sheet uses: SAE J1349, SAE J607, DIN 70020 or ECE R85. WHERE THE DATA COMES FROM Three sources, and you always know which one you are on. Read the barometer built into your iPhone for the real pressure right where you stand. Pull temperature, pressure and humidity from the nearest weather station, with its name and distance always in view. Or type it all in by hand. Apart from the station lookup, the app needs no connection. ACCURACY Density is solved with the full CIPM/Picard equation, including the compressibility factor and water vapour pressure. This is not an ideal-gas approximation: it's the formula used in metrology. 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 The app collects nothing. Your readings, sessions and settings stay on your device. There is no analytics, no third-party SDK and no account. The only network request is the weather station lookup, sent over a secure connection with coordinates rounded to about 110 m and no identifier attached. Available in 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/ba/73/f1/ba73f1d0-e134-9f7d-95f2-ee97e1acccec/01-iphone-65-resultados.png/1242x2688.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/68/0c/59/680c597e-9794-03c8-4dbd-18452ef7280c/02-iphone-65-historial.png/1242x2688.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9e/b0/0c/9eb00cf9-1fda-dabc-6481-a2ddf22b6a85/03-iphone-65-captura.png/1242x2688.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/49/01/1c/49011cfe-41d3-5647-40a1-f8a96aa53408/04-iphone-65-normas.png/1242x2688.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ad/f3/f1/adf3f182-2ff1-a030-2dcc-e65f5f839a5e/05-iphone-65-ayuda.png/1242x2688.png) ## Density Altitude & Air Density Rating Breakdown in United Kingdom - 5 stars: 2 (67%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 1 (33%) - 1 stars: 0 (0%) ## Density Altitude & Air Density Store Rankings | Chart | Country | Category | Rank | |-------|---------|----------|------| | Top Paid | Belarus | Sports | #18 | | Top Paid | United Kingdom | Sports | #21 | | Top Paid | Nigeria | Sports | #27 | | Top Paid | Argentina | Sports | #34 | | Top Paid | Mexico | Sports | #71 | | Top Paid | Brazil | Sports | #75 | | Top Paid | New Zealand | Sports | #76 | | Top Paid | Lebanon | Sports | #83 | | Top Paid | Chile | Sports | #85 | | Top Paid | Dominican Republic | Sports | #92 | | Top Paid | Ukraine | Sports | #95 | | Top Paid | Colombia | Sports | #101 | | Top Paid | Spain | Sports | #102 | | Top Paid | Indonesia | Sports | #109 | | Top Paid | Australia | Sports | #128 | | Top Paid | United Arab Emirates | Sports | #130 | | Top Paid | Sweden | Sports | #131 | | Top Paid | South Africa | Sports | #132 | | Top Paid | Saudi Arabia | Sports | #133 | | Top Paid | Peru | Sports | #138 | | Top Paid | Romania | Sports | #138 | | Top Paid | Portugal | Sports | #149 | | Top Paid | Russia | Sports | #154 | | Top Paid | Italy | Sports | #157 | | Top Paid | Thailand | Sports | #160 | | Top Paid | India | Sports | #161 | | Top Paid | Israel | Sports | #178 | | Top Paid | Norway | Sports | #196 | | Top Paid | Taiwan | Sports | #205 | | Top Paid | Hungary | Sports | #220 | | Top Paid | Kuwait | Sports | #225 | | Top Paid | Denmark | Sports | #232 | | Top Paid | Canada | Sports | #238 | | Top Paid | Switzerland | Sports | #240 | | Top Paid | France | Sports | #246 | | Top Paid | Ireland | Sports | #247 | ## Density Altitude & Air Density Discovered Keywords - air density ## 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) - [Norway](https://apptail.io/app/density-altitude-air-density-xODd/norway) - [Mexico](https://apptail.io/app/density-altitude-air-density-xODd/mexico) - [Italy](https://apptail.io/app/density-altitude-air-density-xODd/italy) - [Saudi Arabia](https://apptail.io/app/density-altitude-air-density-xODd/saudi-arabia) - [France](https://apptail.io/app/density-altitude-air-density-xODd/france) - [Brazil](https://apptail.io/app/density-altitude-air-density-xODd/brazil) - [Canada](https://apptail.io/app/density-altitude-air-density-xODd/canada) - [Spain](https://apptail.io/app/density-altitude-air-density-xODd/spain) - [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) - 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[Ukraine](https://apptail.io/app/density-altitude-air-density-xODd/ukraine) - [Uzbekistan](https://apptail.io/app/density-altitude-air-density-xODd/uzbekistan) - [Vietnam](https://apptail.io/app/density-altitude-air-density-xODd/vietnam) - [United Arab Emirates](https://apptail.io/app/density-altitude-air-density-xODd/united-arab-emirates) - [South Africa](https://apptail.io/app/density-altitude-air-density-xODd/south-africa) - [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) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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