# Heat Index & Category Computer — Weather, stations, and safety > Calculates perceived temperature using air temperature and relative humidity. (iPhone/iPad app by Verosocial Studio.) - Source: https://appshunter.io/ios/app/heat-index-and-category-computer/id370913314 (this page in markdown: same URL + `.md`) - Developer: [Verosocial Studio](https://appshunter.io/developer/354566841) - Category: Weather, Travel - Price: Free with in-app purchases (on sale, was $0.99) - Rating: 5.00/5 from 1 App Store ratings · 26 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 · 13 MB - Languages: American English - Released: 2010-05-14 - Data updated: 2026-08-27 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/heat-index-and-category-computer/id370913314/reviews.md ## What is Heat Index & Category Computer? • Featured by Apple App Store in Weather > What’s Hot for the iPad in 108 countries. Good call using Heat Index Calculator before the day gets away from you. You are already doing the smart thing by checking how the air will actually feel, not just what the temperature says. This app gives you a fast heat index calculator, NOAA weather, nearby weather stations, and practical heat safety context in one clean place. Heat Index Calculator helps when humidity turns a normal forecast into a rough afternoon. Enter temperature and relative humidity, fetch current weather, compare local station observations, and see risk bands that are easier to act on than a plain weather number. Use it for: -> Outdoor work and job site checks -> Sports practice, games, and training -> Running, hiking, cycling, and walking -> Yard work, travel, errands, and summer planning -> Fast humidity checks before you head outside -> Comparing NOAA weather with nearby station readings -> Saving heat checks for later review -> Keeping useful weather data close without a full weather dashboard Core features: -> Heat index calculator for temperature and humidity -> Fahrenheit and Celsius results on the same screen -> Slider controls for quick manual checks -> NOAA weather fetch for your current location -> Saved places for home, job site, school, field, travel, and custom spots -> Nearby weather station data from NOAA sources -> Station comparison by distance, freshness, heat index, and completeness -> Hourly heat index forecast for rest->of->day planning -> Today's peak heat risk when forecast humidity is available -> Clear bands for Military, OSHA, NOAA, and Athletic systems -> First and last trigger details as conditions get hotter -> Local records for fetched weather and manual heat checks -> Heat history with filters and personal reference details -> Export reports and CSV->style summaries from saved records -> Offline reference notes and heat band charts -> Widgets and Apple Watch snapshots from cached app data Why it is useful: -> A hot day can feel very different when humidity rises. -> Heat index gives a better read on perceived temperature. -> NOAA station data can show what is happening near you. -> Saved locations make repeat checks faster. -> Records help you compare recent heat checks. -> Forecast timelines help you plan around the worst part of the day. -> The app keeps weather details readable instead of dumping raw data. Daily checks stay simple: -> Open the app before work, practice, or a long drive -> Fetch current conditions when you want local weather -> Adjust the sliders when you already know the numbers -> Compare nearby stations when one reading looks off -> Save the result when you want a local record -> Check history before repeating the same plan -> Export a report when you need to share the details -> Use widgets for a quick glance after the app has fresh data Heat Index Pro adds expanded planning tools: -> Unlimited saved locations -> Advanced forecast timelines -> Station comparison -> Heat history -> Export reports -> Widgets and Apple Watch snapshots -> Expanded offline reference -> Preparedness progress and badges -> Restore purchases from the Pro screen Free users keep the manual calculator, current heat index result, basic station details, and core reference charts. Pro tools are for planning and personal reference. Heat Index Calculator is informational and does not replace medical advice, workplace rules, emergency direction, or official local guidance. For monthly subscriptions: Monthly Pro is a 1-month auto-renewable subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ If you want a practical heat index calculator, NOAA weather app, humidity calculator, weather station viewer, summer weather tool, or heat safety reference, this app keeps the answer close. ## Key features - Perceived temperature calculation - Heat category for safety - Considers air temperature and humidity - Email results - Fahrenheit and Celsius support - Automatic US weather data fetch ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Heat Index Pro Unlock | $1.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime Pro Unlock | $14.99 | one-time | ## Recent user reviews (10 of 26) All indexed reviews: https://appshunter.io/ios/app/heat-index-and-category-computer/id370913314/reviews.md ### 5/5 — Great new additions *2026-07-07* The local stations and the daily forecast is very useful. Thanks ### 5/5 — Location information is useful *2025-05-28* Heat index to the location is a great addition ### 2/5 — Not very good. *2020-02-11* Tried using this for HVAC conversion for helping customers to understand what the temp actually feels like. They should put in the advertising that this program can only work with temps above 80. Not good ### 5/5 — Really helpful for spring and summer changes *2014-09-15* New graphics make it look nice. Updates fix some issues... Great app overall. ### 5/5 — Army Medic Approved *2014-07-21* As a Combat Medic, this was totally worth the dollar I spent. Now when my Training Officer asks what the Heat Cat is, I don't have to even leave my vehicle!! ### 3/5 — Great... I think... *2012-09-19* This app really works well but I which it would give me some idea of where it is using as a location for reporting the heat index. I touch "fetch", it gives the heat index, and I'm left wondering if it's for Phoenix or Tampa. I'm a pilot by trade and I may see 5 cities in a day and it'd be nice to have some idea of the location it's using. Some idea of the time stamp it's using would also be nice. Is the heat index for now or three hours ago? ### 5/5 — Heat index *2012-08-27* I was looking for a Program that would help me determine the actual heat index "Quickly"! Due to some medical conditions I have it is imperative that I know the heat index quickly. This program is Awesome And has helped me immensely. Thank You! ### 5/5 — GREAT APP *2012-08-20, version 5.0* Great app ### 5/5 — Handy to have *2012-08-07* I use it all the time. Especially on the golf course to monitor the heat index. Great program. ### 5/5 — Saves my life *2012-07-28* I have pretty serious heat issues, great app for making sure I don't push it over the limit. ## Frequently asked questions about Heat Index & Category Computer ### What is the Heat Index & Heat Category app used for? The Heat Index & Heat Category app calculates the perceived temperature by factoring in both air temperature and relative humidity. It then provides a heat category to help users understand the level of caution needed when spending time outdoors. ### How accurate is the Heat Index & Heat Category app? The app provides a good estimate of perceived temperature by considering air temperature and relative humidity. It is most effective when temperatures are at least 80°F / 26°C and humidity is at least 40%. ### What devices support the Heat Index & Heat Category app? The Heat Index & Heat Category app is a universal app that supports iPhone, iPad, and iPod Touch devices. It is designed to work with all screen sizes for these devices. ### Can I share my heat index calculations from the app? Yes, you can email your calculations or conversions directly from the Heat Index & Heat Category app using a prewritten template through your device's email application. ### Does the Heat Index & Heat Category app work offline? The app automatically fetches weather data inside the USA when the FETCH button is pressed. It is not explicitly stated if it functions offline for calculations once data is fetched. ### What is the price of the Heat Index & Heat Category app? The Heat Index & Heat Category app is available for a one-time purchase price of $0.99. ### How often is the Heat Index & Heat Category app updated? The latest version of the app is 7.0, and it was last updated on May 27, 2025. It supports the latest version of iOS. ### What is the age rating for the Heat Index & Heat Category app? The Heat Index & Heat Category app has an age rating of 4+, making it suitable for young children and up. ## Version history (last 5 releases) ### 9.1 — 2026-08-21 Thanks for using Heat Index and checking the day before the heat checks you. You are using the app for exactly what it is meant to do: get a clear answer, compare the weather around you, and make a better call before work, practice, travel, or time outside. This update turns the app into a fuller heat planning tool while keeping the basic calculator quick. Calculator improvements: -> Cleaner Heat screen with a larger result area -> Faster temperature and humidity adjustments -> Slider controls with readable values -> Quick reset after a fetched weather update -> Fahrenheit and Celsius shown together -> Better category cards for heat risk -> Military, OSHA, NOAA, and Athletic bands in one place -> First trigger and last trigger details for rising heat -> Better layout on iPhone and iPad Weather and station improvements: -> NOAA weather fetch is easier to reach -> Current conditions land directly on the sliders -> Nearby station data is easier to scan -> Station details are cleaned up for normal reading -> Forecast text is easier to compare with current conditions -> Search works better in dense station pages -> Station comparison adds distance, freshness, heat index, and completeness -> Saved locations can be reused across weather, forecast, and station tools -> GPS and saved place context stays clearer while moving around the app ### 9.0 — 2026-07-07 Thanks for using Heat Index and checking the day before the heat checks you. You are using the app for exactly what it is meant to do: get a clear answer, compare the weather around you, and make a better call before work, practice, travel, or time outside. This update turns the app into a fuller heat planning tool while keeping the basic calculator quick. Calculator improvements: -> Cleaner Heat screen with a larger result area -> Faster temperature and humidity adjustments -> Slider controls with readable values -> Quick reset after a fetched weather update -> Fahrenheit and Celsius shown together -> Better category cards for heat risk -> Military, OSHA, NOAA, and Athletic bands in one place -> First trigger and last trigger details for rising heat -> Better layout on iPhone and iPad Weather and station improvements: -> NOAA weather fetch is easier to reach -> Current conditions land directly on the sliders -> Nearby station data is easier to scan -> Station details are cleaned up for normal reading -> Forecast text is easier to compare with current conditions -> Search works better in dense station pages -> Station comparison adds distance, freshness, heat index, and completeness -> Saved locations can be reused across weather, forecast, and station tools -> GPS and saved place context stays clearer while moving around the app ### 8.2 — 2026-05-08 This update makes the app easier to use when the weather turns heavy and you want a quick answer. - The Heat Index screen is cleaner and easier to read at a glance. - Temperature and humidity entry is simpler to work with. - The keyboard now dismisses more naturally when you tap outside the fields. - A Done button is available on the keyboard for faster input cleanup. - NOAA weather and nearby station data are easier to get to from the same place. - Station browsing is smoother when you want a local weather check. - Observation details are laid out so the useful information appears first. - Forecast and observation sections are easier to scan on iPhone and iPad. - Search inside station data is better for long pages and dense readings. - The app makes it easier to compare current weather, nearby stations, and forecast details. - Heat index values remain available in both Fahrenheit and Celsius for quick checks. - Local values stay saved so repeat use is faster. - The result is a cleaner path from input to answer. This release also makes the station experience feel more like a weather tool and less like raw data. - XML-style document noise is hidden from the main view. - Weather content is presented in cleaner, more readable sections. - Station observations are easier to scan before you head outside. - Forecast information is easier to compare with current conditions. - Nearby station data is simpler to read, especially on a smaller screen. - The app keeps the focus on the data people actually need. - It is easier to move from a location check to a station check without losing context. - The station view now feels more like something you can use in real life, not something you have to decode. The update also improves the everyday flow of the app. - Manual entry is still there when you already know the numbers. - Current location checks are easier to compare with nearby NOAA stations. - The calculator is easier to reach when you need a fast answer. - The weather information is laid out more like a utility and less like a report. - You can get from temperature to heat index to station data with less friction. - It is easier to keep moving when you are outside and checking conditions on the go. - The app stays practical for work, sports, travel, and summer planning. - The result is a faster check before you head into the heat. It is a better fit for outdoor work, sports, travel, and summer planning. - Less friction when you are checking conditions on the go. - Better for humidity-heavy days when the air feels worse than the forecast. - Better for users who want a practical weather app without extra noise. - Better for quick checks before a run, a game, a shift, or a drive. - Better for anyone who wants a heat safety tool that feels easy to trust. - Better for comparing local weather, station data, and forecast context in one place. - Better for people who want weather information they can use right away. - Better for a routine that starts with a quick local reading instead of guesswork. You should notice that the app now reads more like a weather utility and less like a pile of raw data. The station experience is clearer, the calculator is easier to reach, and the results are easier to understand without stopping to decode them. The update also stays aligned with common searches and everyday use: - heat index - NOAA forecast - weather station - station data - humidity - temperature - weather safety - outdoor weather - summer heat - local weather - heat stress - weather station observations If you use the app to check conditions before heading outside, this update should feel like less friction and more signal. It is the same practical tool, just easier to read and easier to trust when the day turns hot. ### 8.1 — 2026-05-06 bug fixes ### 8.0 — 2026-05-05 feature updates and stability ## Apps similar to Heat Index & Category Computer | App | Rating | Price | Category | | --- | --- | --- | --- | | [Heat Safety](https://appshunter.io/ios/app/heat-safety/id6472613736) | 4.6 (2,546) | Free | Weather | | [Fishing Calendar & Tide Times](https://appshunter.io/ios/app/fishing-calendar-and-tide-times/id414676749) | 4.4 (12,011) | Free | Weather | | [13abc First Alert Weather](https://appshunter.io/ios/app/13abc-first-alert-weather/id1421229479) | 4.7 (10,937) | Free | Weather | | [Heat Index Calculator Pro](https://appshunter.io/ios/app/heat-index-calculator-pro/id6476157163) | 4.7 (69) | Free | Weather | | [HeatAlert: Heat Stress Index](https://appshunter.io/ios/app/heatalert-heat-stress-index/id6475117114) | 3.6 (11) | Free | Weather | | [MCWX](https://appshunter.io/ios/app/mcwx/id6502533755) | 4.9 (316) | Free | Weather | ## More apps by Verosocial Studio - [Wind Chill, Snow Day Pro](https://appshunter.io/ios/app/wind-chill-snow-day-pro/id372283970) - [LSI Water Service Logbook/Plan](https://appshunter.io/ios/app/lsi-water-service-logbookplan/id373769371) - [Roadtrip: Fuel & Trip Planner](https://appshunter.io/ios/app/roadtrip-fuel-and-trip-planner/id377000731) - [Torque Calculator, Units Conv](https://appshunter.io/ios/app/torque-calculator-units-conv/id379959718) - [Gas Oil Mixture Ratio](https://appshunter.io/ios/app/gas-oil-mixture-ratio/id380750809) All apps by Verosocial Studio: https://appshunter.io/developer/354566841 --- *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 2026-08-27.*