# Air Density & Altitude: AirLab — Engine tuning tool, dyno meter > Calculates air density, density altitude, and dyno correction factors using weather data. (iPhone/iPad app by Ballistic Solutions LLC.) - Source: https://appshunter.io/ios/app/air-density-and-altitude-airlab/id1468692831 (this page in markdown: same URL + `.md`) - Developer: [Ballistic Solutions LLC](https://appshunter.io/developer/1611909747) - Category: Sports, Utilities - Price: Free with in-app purchases - Rating: 3.40/5 from 19 App Store ratings · 14 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 40 MB - Languages: German (Germany), Arabic, Danish, American English, Finnish, French (France), Greek, Hebrew, Indonesian, Italian and 22 more - Released: 2019-08-08 - Data updated: 2026-08-20 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/air-density-and-altitude-airlab/id1468692831/reviews.md ## What is Air Density & Altitude? * Seamlessly integrates OpenWeatherMap, MET Meteorologisk institute, Amazon weather data, GPS and phone's onboard barometer to quickly and accurately calculate your air density, density altitude and rest very useful for tuners and aviators data * Works great without cellular connection or barometer * Сan work without access to your current location (we care about your privacy), you can manually select any place in the world on the map and get data for this place *Get weather via Bluetooth using weather stations: Kestrel DROP, Kestrel 5x00, WeatherFlow WEATHERmeter, Skywatch BL This app provides: - Air Density - Density Altitude - Relative Air Density (RAD) - Dew Point - SAE - Dyno Correction Factor - SAE - Relative Horsepower - Station Pressure - Saturation Vapor Pressure - Virtual Temperature - Actual Vapor Pressure - Cumulus Cloud Base Height - Dry Air - Dry Air Pressure - Volumetric Content of Oxygen - Oxygen Pressure This app can obtain automatically the position and altitude to get the temperature, pressure and humidity from the nearest weather station thought internet. Internal barometer is used on supported devices for better precision (from iPhone 6/6+ and newer iPads). If more accuracy is needed, a portable weather station can also be used. Application can run without GPS, WiFi and internet. If you're in internet range, you don't need to supply any data. If you're out of internet range, all you need to supply is the outside air temperature. Great tool for pilots, drag racers, engine tuners, or anyone who needs to conveniently find their Air Density, Density Altitude, Dyno Correction Factor and rest of calculated data. The application is made up of three tabs that are described next: • Results: In this tab are shown: - Air Density - Density Altitude - Relative Air Density (RAD) - Dew Point - SAE - Dyno Correction Factor - SAE - Relative Horsepower - Station Pressure - Saturation Vapor Pressure - Virtual Temperature - Actual Vapor Pressure - Cumulus Cloud Base Height - Dry Air - Dry Air Pressure - Volumetric Content of Oxygen - Oxygen Pressure In addition, the parameters used for the calculations are showed and can be changed (time, temperature, humidity, pressure and altitude). For each of the parameters there is a detailed explanation (just tap on any parameter). • History: This tab contains the history of all calculating data. If you change the weather, the new data will be saved in history. • Weather: In this tab, you can set the values for current temperature, pressure, altitude and humidity. Also this tab allows to use the GPS to get the current position and altitude, and connect to an external service (you can choose one weather data source from several possible) to get the weather conditions of the nearest weather station (temperature, pressure and humidity). You can manually select which type of atmospheric pressure you are working with (for example if you use portable barometers, weather stations): - sea level pressure QNH - sea level pressure QFF - station pressure (barometric pressure) In addition, this application can work with a pressure sensor built into the iPhone. You can see if it is available on your device and turn it on or off. Also, on this tab, you can enable alerts about possible carburetor icing. The app let you use different measure units: ºC y ºF for temperatures, meter and feet for altitude, and mb, hPa, mmHg, inHg for pressures. If you have any doubt about using this App, please, contact us. We answer every question, and we take care of all comments from our users to try to improve our software. We are also users of this application. EULA: http://www.jet-lab.org/terms-of-use/ ## Key features - Air Density calculation - Density Altitude calculation - Dyno Correction Factor - Integration with weather services - GPS and barometer support - Manual location selection - Bluetooth weather station integration ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | One Month | $0.99 | per month | | One Year | $3.49 | per year | ## Recent user reviews (10 of 14) All indexed reviews: https://appshunter.io/ios/app/air-density-and-altitude-airlab/id1468692831/reviews.md ### 3/5 — Handy *2025-11-06* Great app wish it had a widget for Quick access ### 1/5 — No longer working *2024-09-25* The app was great… initially. Unfortunately, you pay for the app and now it won’t retrieve data anymore. Of course, I can’t get a refund for the purchase. But would much rather the app function. ### 1/5 — Worthless *2024-08-07* Don’t waste your time! Worked for 2 days then just keeps spinning to retrieve data ### 1/5 — Stopped working! *2024-07-04* Has turned to useless junk. Just sits and spins and spins but gathers no data. ### 1/5 — Stopped working! *2024-06-28* See above. ### 1/5 — What happened? *2024-06-17* I love this tool. It’s stuck on “retrieving data”. Can you fix this please. ### 1/5 — What happened? *2024-06-17* Updates stuck on "Retreiving Data". Love this app. Use it for all my race weekends. Hoping you fix. ### 5/5 — Top App *2024-06-16* Die App ist so gut, dass ich in den inApp-Kauf auf die Vollversion gemacht habe. ### 5/5 — Works great for me *2021-01-21* 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 use it a lot. ### 5/5 — Good *2020-01-07* Very good for creating jetting chart for dragracers ## Frequently asked questions about Air Density & Altitude ### What is AirLab used for? AirLab calculates essential atmospheric data like air density, density altitude, and dyno correction factors. This information is crucial for engine tuners and aviators to optimize performance and ensure accurate calculations. ### How does AirLab get its weather data? AirLab integrates with OpenWeatherMap, MET Meteorologisk institute, and Amazon weather data. It can also use your phone's GPS and onboard barometer, or connect to external weather stations via Bluetooth for precise readings. ### Can AirLab work offline? Yes, AirLab can function without a cellular connection or barometer. If you are offline, you will need to manually input the outside air temperature for calculations. ### Does AirLab have ads? No, AirLab does not contain advertisements. The app is free to download and use, with optional in-app purchases for subscription plans. ### What subscription plans are available for AirLab? AirLab offers a one-month subscription for $0.99 with a 7-day free trial, and a one-year subscription for $3.49. These plans provide access to premium features and data. ### What devices is AirLab compatible with? AirLab is designed for iOS devices, including iPhones, iPads, and iPods. It utilizes onboard barometers on supported devices like iPhone 6/6+ and newer iPads for enhanced accuracy. ### How often is AirLab updated? The latest version of AirLab is 2.0, which was last updated on January 26, 2025. Updates typically bring new features, bug fixes, and performance improvements. ### What is the age rating for AirLab? AirLab has an age rating of 4+, making it suitable for a wide range of users. The app's content and functionality are appropriate for children and adults. ## Version history (last 5 releases) ### 2.0 — 2025-01-26 • Fixed problem with connecting Kestrel 5x00 devices • Added new feature: get weather (temperature, pressure, humidity) via Bluetooth using weather stations: Kestrel DROP, Kestrel 5x00, WeatherFlow WEATHERmeter, Skywatch BL • Added new feature: added the ability to calibrate the barometer built into your phone or tablet (go to the “Settings“ tab, then “Measurement units“) • Added new feature: added various utilities (unit converters) (go to the “Settings“ tab, then “Utils“) • We have improved our weather calculator significantly. Now you can manually select which type of atmospheric pressure you are working with (for example if you use portable barometers, weather stations): - sea level pressure QNH - sea level pressure QFF - station pressure (barometric pressure) • We added the ability to leave text notes for each history in 'History' tab. To do this, open any History, enter edit mode and add a note • Now you can manually select the translation language. Application contains many special terms and sometimes translations that we offer are not always good. We are sorry. Now, if your phone (for example) in German, but you are unhappy with the translation you can switch to English (for example) only in this app (you don't have to change locale of device). You can find this feature on 'Weather' tab at the very bottom • New feature: Weather for custom location. You can manually select any place in the world and all data will be calculated for it (for altitude and current weather conditions in this place) • Improved functionality for the feature 'Weather for custom location'. We added a search bar where you can enter the location name. Search places easier and faster now • We reworked the altitude determination algorithm for the 'weather for custom location' feature. We hope that now, if you manually selected your location, the altitude will be calculated with much greater accuracy • Bug fixes for 'share data with friends' feature ### 1.9 — 2022-02-16 • Fixed problem with connecting Kestrel 5x00 devices • Added new feature: get weather (temperature, pressure, humidity) via Bluetooth using weather stations: Kestrel DROP, Kestrel 5x00, WeatherFlow WEATHERmeter, Skywatch BL • Added new feature: added the ability to calibrate the barometer built into your phone or tablet (go to the “Settings“ tab, then “Measurement units“) • Added new feature: added various utilities (unit converters) (go to the “Settings“ tab, then “Utils“) • We have improved our weather calculator significantly. Now you can manually select which type of atmospheric pressure you are working with (for example if you use portable barometers, weather stations): - sea level pressure QNH - sea level pressure QFF - station pressure (barometric pressure) • We added the ability to leave text notes for each history in 'History' tab. To do this, open any History, enter edit mode and add a note • Now you can manually select the translation language. Application contains many special terms and sometimes translations that we offer are not always good. We are sorry. Now, if your phone (for example) in German, but you are unhappy with the translation you can switch to English (for example) only in this app (you don't have to change locale of device). You can find this feature on 'Weather' tab at the very bottom • New feature: Weather for custom location. You can manually select any place in the world and all data will be calculated for it (for altitude and current weather conditions in this place) • Improved functionality for the feature 'Weather for custom location'. We added a search bar where you can enter the location name. Search places easier and faster now • We reworked the altitude determination algorithm for the 'weather for custom location' feature. We hope that now, if you manually selected your location, the altitude will be calculated with much greater accuracy • Bug fixes for 'share data with friends' feature ### 1.8 — 2021-11-13 • Added new feature: get weather (temperature, pressure, humidity) via Bluetooth using weather stations: Kestrel DROP, Kestrel 5x00, WeatherFlow WEATHERmeter, Skywatch BL • Added new feature: added the ability to calibrate the barometer built into your phone or tablet (go to the “Settings“ tab, then “Measurement units“) • Added new feature: added various utilities (unit converters) (go to the “Settings“ tab, then “Utils“) • We have improved our weather calculator significantly. Now you can manually select which type of atmospheric pressure you are working with (for example if you use portable barometers, weather stations): - sea level pressure QNH - sea level pressure QFF - station pressure (barometric pressure) • We added the ability to leave text notes for each history in 'History' tab. To do this, open any History, enter edit mode and add a note • Now you can manually select the translation language. Application contains many special terms and sometimes translations that we offer are not always good. We are sorry. Now, if your phone (for example) in German, but you are unhappy with the translation you can switch to English (for example) only in this app (you don't have to change locale of device). You can find this feature on 'Weather' tab at the very bottom • New feature: Weather for custom location. You can manually select any place in the world and all data will be calculated for it (for altitude and current weather conditions in this place) • Improved functionality for the feature 'Weather for custom location'. We added a search bar where you can enter the location name. Search places easier and faster now • We reworked the altitude determination algorithm for the 'weather for custom location' feature. We hope that now, if you manually selected your location, the altitude will be calculated with much greater accuracy • Bug fixes for 'share data with friends' feature ### 1.7 — 2020-11-04 • We have improved our weather calculator significantly. Now you can manually select which type of atmospheric pressure you are working with (for example if you use portable barometers, weather stations): - sea level pressure QNH - sea level pressure QFF - station pressure (barometric pressure) • We added the ability to leave text notes for each history in 'History' tab. To do this, open any History, enter edit mode and add a note • Now you can manually select the translation language. Application contains many special terms and sometimes translations that we offer are not always good. We are sorry. Now, if your phone (for example) in German, but you are unhappy with the translation you can switch to English (for example) only in this app (you don't have to change locale of device). You can find this feature on 'Weather' tab at the very bottom • New feature: Weather for custom location. You can manually select any place in the world and all data will be calculated for it (for altitude and current weather conditions in this place) • Improved functionality for the feature 'Weather for custom location'. We added a search bar where you can enter the location name. Search places easier and faster now • We reworked the altitude determination algorithm for the 'weather for custom location' feature. We hope that now, if you manually selected your location, the altitude will be calculated with much greater accuracy • Bug fixes for 'share data with friends' feature ### 1.6 — 2020-09-20 • We have improved our weather calculator significantly. Now you can manually select which type of atmospheric pressure you are working with (for example if you use portable barometers, weather stations): - sea level pressure QNH - sea level pressure QFF - station pressure (barometric pressure) • We added the ability to leave text notes for each history in 'History' tab. To do this, open any History, enter edit mode and add a note • Now you can manually select the translation language. Application contains many special terms and sometimes translations that we offer are not always good. We are sorry. Now, if your phone (for example) in German, but you are unhappy with the translation you can switch to English (for example) only in this app (you don't have to change locale of device). You can find this feature on 'Weather' tab at the very bottom • New feature: Weather for custom location. You can manually select any place in the world and all data will be calculated for it (for altitude and current weather conditions in this place) • Improved functionality for the feature 'Weather for custom location'. We added a search bar where you can enter the location name. Search places easier and faster now • We reworked the altitude determination algorithm for the 'weather for custom location' feature. We hope that now, if you manually selected your location, the altitude will be calculated with much greater accuracy • Bug fixes for 'share data with friends' feature ## Apps similar to Air Density & Altitude | App | Rating | Price | Category | | --- | --- | --- | --- | | [DragBMP](https://appshunter.io/ios/app/dragbmp/id1489421882) | 4.0 (6) | Free | Sports | | [Galot-Motorsports](https://appshunter.io/ios/app/galot-motorsports/id1642572727) | 5.0 (1) | Free | Sports | | [TulsaRP](https://appshunter.io/ios/app/tulsarp/id1511072354) | 4.8 (5) | Free | Sports | | [RaceOSW](https://appshunter.io/ios/app/raceosw/id1449450293) | 4.0 (8) | Free | Sports | | [Ballistics Buddy](https://appshunter.io/ios/app/ballistics-buddy/id1524705252) | 5.0 (7) | Free | Sports | | [Racing Slips](https://appshunter.io/ios/app/racing-slips/id1412589857) | 5.0 (1) | Free | Sports | ## More apps by Ballistic Solutions LLC - [Jetting for TM KZ / ICC Kart](https://appshunter.io/ios/app/jetting-for-tm-kz-icc-kart/id1450856766) - [Jetting Modena KZ1 / KZ2 Kart](https://appshunter.io/ios/app/jetting-modena-kz1-kz2-kart/id1451498700) - [Jetting Vortex KZ1 / KZ2 Kart](https://appshunter.io/ios/app/jetting-vortex-kz1-kz2-kart/id1451631744) - [Jetting IAME KZ1 / KZ2 Kart](https://appshunter.io/ios/app/jetting-iame-kz1-kz2-kart/id1451745477) - [Jetting Rotax Max EVO Kart](https://appshunter.io/ios/app/jetting-rotax-max-evo-kart/id1451969138) - [Jetting Rotax Max Kart](https://appshunter.io/ios/app/jetting-rotax-max-kart/id1453317954) All apps by Ballistic Solutions LLC: https://appshunter.io/developer/1611909747 ## Related topics [density altitude](https://appshunter.io/ios/topics/density-altitude) · [air density calculator](https://appshunter.io/ios/topics/air-density-calculator) · [air density](https://appshunter.io/ios/topics/air-density) · [air density online](https://appshunter.io/ios/topics/air-density-online) · [density altitude meter](https://appshunter.io/ios/topics/density-altitude-meter) · [godeadon](https://appshunter.io/ios/topics/godeadon) · [density altitude calculators](https://appshunter.io/ios/topics/density-altitude-calculators) · [air density & rad meter pro](https://appshunter.io/ios/topics/air-density-rad-meter-pro) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*