# HeatAlert: Heat Stress Index — user reviews

> 3 indexed App Store user reviews of HeatAlert by WeatherFlow, rated 3.60/5 from 11 ratings.

- Source: https://appshunter.io/ios/app/heatalert-heat-stress-index/id6475117114/reviews
- App overview in markdown: https://appshunter.io/ios/app/heatalert-heat-stress-index/id6475117114.md
- Rating breakdown: 5★ 7 · 4★ 0 · 3★ 0 · 2★ 1 · 1★ 3

## Most critical reviews (3 lowest-rated)

### 1/5 — Bad app

*2026-07-13*

Inaccurate weather. Niosha is more accurate with wind and humidity. Says it’s 82 when it’s 111 outside

### 1/5 — Doesn’t work

*2024-04-16*

I can not make this app work at all on my iPhone 13. 
I have tried everything i can think of to do.

**Developer response:** Hey! Please contact our support team for assistance and troubleshooting. You can email us at support@tempest.earth or open a ticket from help.tempest.earth

### 5/5 — Finally true wet bulb global temps!

*2026-06-25*

Been after an app that would calculate these for ages. With the heat wave in Europe I need to know if it’s safe to train. This app serves that purpose

Thank you devs!

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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 2026-09-03.*