Heat Index Pro1.3 - App Store
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Publisher Description
The first "Heat Index" tool that uses the Lans P. Rothfusz equation.
[Description]
The heat index (HI) is an index that combines air temperature and relative humidity, in shaded areas, that is the feeling of "hot" or "cold" that is felt; it is due not only to the air temperature, but also to other environmental conditions, such as humidity and wind.
The heat index was developed in 1979 by Robert G. Steadman.
The computation of the heat index is a refinement of a result obtained by multiple regression analysis carried out by Lans P. Rothfusz and described in a 1990 National Weather Service (NWS) Technical Attachment (SR 90-23).
The heat index is also known as the "felt air temperature", "apparent temperature", "real feel" or "feels like".
The humidity in the air can increase the sensation of heat, while the wind can increase the sensation of cold.
For example, when the temperature is 32°C (90°F) with 70% relative humidity, the heat index is 41°C (106°F).
[How does it work]
Wherever you are, you will have the Heat Index, temperature, humidity and weather conditions.
Search for new locations and they will automatically be added to your favorites.
Make sure you have activated the location services on your device, at this point the App will detect your geographical position.
[Features]
- Heat Index calculated with the Rothfusz equation
- Temperature
- Humidity
- Effects of the Heat Index
- Choice of 3 units of measurement: celsius, fahrenheit and kelvin
- Map current location
- Search City (without limits)
- Save favorite places (without limits)
- Intuitive graphics
- Ease of use
[Supported languages]
English, Italian, Spanish, French, German, Portuguese, Dutch, Russian, Chinese, Japanese, Danish, Finnish, Norwegian, Swedish.
[Support]
If you need help please do not hesitate to contact us at info@lionsapp.com, or visit www.lionsapp.com
If you like the App, don't forget to leave us a comment on the App Store.
Version History + Completely redesigned app (The app has been completely redesigned in both design and features)
+ Optimized for iOS 26 (The app is now optimized for iOS 26)
+ Liquid Glass (Say hello to Liquid Glass)
+ Landscape orientation support (You can now use the app with your devices in landscape orientation)
+ Rothfusz calculation with adjustment (For low temperature values, the simplified adjustment formula by Rothfusz is now used)
+ Heat index, temperature, humidity chart (We’ve added a 3‑day forecast chart for heat index, temperature, and humidity)
+ Upgrade to Pro (Get additional features by upgrading to the Pro version)
+ New weather data provider (Welcome, WeatherApi) 1.3 Sep 25 + Fixed a problem on iPad 10.2", the preferred location would not be loaded once selected 1.2 08/04/2020 + Fixed an issue with the name of the current location 1.1 07/29/2020 1.0 06/21/2020
About Heat Index Pro
The company that develops Heat Index Pro is LionsApp di Nallbati Elton. The latest version released by its developer is 1.3.
To install Heat Index Pro on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Heat Index Pro as malware if the download link is broken.
How to install Heat Index Pro on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Heat Index Pro is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Heat Index Pro is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.3
posted on 2026-10-14
Version History + Completely redesigned app (The app has been completely redesigned in both design and features)
+ Optimized for iOS 26 (The app is now optimized for iOS 26)
+ Liquid Glass (Say hello to Liquid Glass)
+ Landscape orientation support (You can now use the app with your devices in landscape orientation)
+ Rothfusz calculation with adjustment (For low temperature values, the simplified adjustment formula by Rothfusz is now used)
+ Heat index, temperature, humidity chart (We’ve added a 3‑day forecast chart for heat index, temperature, and humidity)
+ Upgrade to Pro (Get additional features by upgrading to the Pro version)
+ New weather data provider (Welcome, WeatherApi) 1.3 Sep 25 + Fixed a problem on iPad 10.2", the preferred location would not be loaded once selected 1.2 08/04/2020 + Fixed an issue with the name of the current location 1.1 07/29/2020 1.0 06/21/2020
version 1.3
posted on 2026-09-25
Version History + Completely redesigned app (The app has been completely redesigned in both design and features)
+ Optimized for iOS 26 (The app is now optimized for iOS 26)
+ Liquid Glass (Say hello to Liquid Glass)
+ Landscape orientation support (You can now use the app with your devices in landscape orientation)
+ Rothfusz calculation with adjustment (For low temperature values, the simplified adjustment formula by Rothfusz is now used)
+ Heat index, temperature, humidity chart (We’ve added a 3‑day forecast chart for heat index, temperature, and humidity)
+ Upgrade to Pro (Get additional features by upgrading to the Pro version)
+ New weather data provider (Welcome, WeatherApi) 1.3 15h ago + Fixed a problem on iPad 10.2", the preferred location would not be loaded once selected 1.2 08/04/2020 + Fixed an issue with the name of the current location 1.1 07/29/2020 1.0 06/21/2020
version 1.2
posted on 2026-09-18
Version History + Fixed a problem on iPad 10.2", the preferred location would not be loaded once selected 1.2 08/04/2020 + Fixed an issue with the name of the current location 1.1 07/29/2020 1.0 06/21/2020
version 1.2
posted on 2020-08-04
Aug 4, 2020
Version 1.2
+ Fixed a problem on iPad 10.2", the preferred location would not be loaded once selected
version 1.2
posted on 2020-08-04
+ Fixed a problem on iPad 10.2", the preferred location would not be loaded once selected
Disclaimer
Official App Store Link
We do not host Heat Index Pro on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
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