# Wet Bulb & Safety: HeatCue — Heat index, WBGT & alerts

> Calculates WBGT and provides outdoor heat safety risk assessments. (iPhone/iPad app by Joao Filipe Serôdio Josézinho.)

- Source: https://appshunter.io/ios/app/wet-bulb-and-safety-heatcue/id6790204017 (this page in markdown: same URL + `.md`)
- Developer: [Joao Filipe Serôdio Josézinho](https://appshunter.io/developer/587880560)
- Category: Weather, Reference
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: +9
- Requires: iOS 18.0 · 17 MB
- Languages: Brazilian Portuguese, German (Germany), Bulgarian, Chinese (Simplified, China), European Spanish, French (France), Hindi, American English, Russian, Arabic
- Released: 2026-08-02
- Data updated: 2026-08-22
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/wet-bulb-and-safety-heatcue/id6790204017/reviews.md

## What is Wet Bulb & Safety?

Is it safe to be outside right now? HeatCue turns the temperature and humidity where you are into a clear answer: wet-bulb globe temperature (WBGT), the reading that captures how heat and humidity actually hit your body, with a plain risk band you can read in a second.

Know before you go:
• Current WBGT for your location: heat and humidity in one number
• A clear risk band: Safe / Caution / Danger / Extreme
• UV index beside the heat: sunburn risk at a glance
• Threshold alerts: get your cue before conditions turn dangerous
• Home-screen widgets: conditions at a glance
• Hourly + 7-day forecast and trends: plan the run, the hike, the walk
• Multiple locations: home, work, the trailhead
• Persona profiles: the average person, at-risk people, and dogs each have different heat limits
• Plain-language guides: what wet bulb and WBGT actually mean

Built for anyone who works, trains, or plays outside, and for anyone keeping an eye on kids, older family, or pets through a heatwave.

HeatCue shows conditions and general risk categories based on public weather data.

Privacy Policy: https://heatcue.app/privacy/
Terms of Use (EULA): http://www.apple.com/legal/itunes/appstore/dev/stdeula

## Key features

- Wet-bulb globe temperature (WBGT) calculation
- Clear risk band (Safe, Caution, Danger, Extreme)
- UV index display
- Customizable threshold alerts
- Home-screen widgets
- Hourly and 7-day forecasts
- Multiple location support
- Persona-based heat limits

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Yearly | $19.99 | per year |
| Pro Weekly | $2.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Permanent Unlock | $99.99 | one-time |


## Chart rankings

- #163 in Top Free · Weather (US App Store)
- #158 in Top Grossing · Weather (US App Store)


## Frequently asked questions about Wet Bulb & Safety

### What is WBGT and why is it important for HeatCue?

WBGT stands for Wet-Bulb Globe Temperature. It's a measure that combines temperature, humidity, wind speed, and solar radiation to accurately reflect how heat affects the human body. HeatCue uses WBGT to provide a more precise assessment of outdoor heat safety than standard temperature readings alone.

### Does HeatCue have ads?

No, HeatCue does not contain advertisements. The app is free to use with optional subscription plans for enhanced features.

### What are the subscription options for HeatCue?

HeatCue offers a 'Pro Weekly' subscription for $2.99 per week and a 'Pro Yearly' subscription for $19.99 per year. The yearly plan includes a 7-day free trial.

### Can I cancel my HeatCue subscription?

Yes, you can cancel your HeatCue subscription at any time. Subscriptions can typically be managed through your device's app store settings.

### What devices does HeatCue support?

HeatCue is available for Apple Watch and iPhone, allowing you to check heat safety conditions on your wrist or phone.

### How often is HeatCue updated?

The app was last updated on August 17, 2026, with version 1.2. This indicates a recent update, suggesting ongoing development and support.

### What is the age rating for HeatCue?

HeatCue has an age rating of +9. This suggests the content is generally suitable for users aged 9 and older, with no mature themes.

### How does HeatCue compare to other weather apps?

Unlike general weather apps, HeatCue specifically focuses on heat safety by calculating WBGT and providing clear risk bands. It also offers persona profiles for different sensitivities and customizable alerts, which are not common features in standard weather applications.

## Version history (last 2 releases)

### 1.2 — 2026-08-17

On Apple Watch, My Location complications now follow where you are, show the local place name, and match HeatCue’s app language. Weather updates are more reliable, too.

### 1.1 — 2026-08-02

No release notes.

## More apps by Joao Filipe Serôdio Josézinho

- [Cakes: Birthday Calendar](https://appshunter.io/ios/app/cakes-birthday-calendar/id587880557)
- [GLP-1 & Zepbound Log: Jabalog](https://appshunter.io/ios/app/glp-1-and-zepbound-log-jabalog/id6774383647)
- [KGNAD: Study German Cases](https://appshunter.io/ios/app/kgnad-study-german-cases/id6789732366)

All apps by Joao Filipe Serôdio Josézinho: https://appshunter.io/developer/587880560

## Related topics

[wet bulb](https://appshunter.io/ios/topics/wet-bulb) · [outdoor safety](https://appshunter.io/ios/topics/outdoor-safety) · [heat safety pro](https://appshunter.io/ios/topics/heat-safety-pro) · [heatstroke](https://appshunter.io/ios/topics/heatstroke) · [temperature alerts](https://appshunter.io/ios/topics/temperature-alerts)

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*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 2026-08-22.*