# OSHA-NIOSH Heat Safety Tool

> Weather

Canonical page: [https://chrome-stats.com/d/id1239425102](https://chrome-stats.com/d/id1239425102)

## Overview

- **ID:** `id1239425102`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Centers For Disease Control and Prevention
- **Category:** Weather
- **Rating:** 2.60 / 5 (316 ratings)
- **Version:** 3.7
- **Last updated:** 2025-01-06
- **First published:** 2017-05-24
- **Size:** 50 MB
- **Data as of:** 2026-09-25
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/osha-niosh-heat-safety-tool/id1239425102)
- **Privacy policy:** [https://www.cdc.gov/other/mobileprivacypolicy.html](https://www.cdc.gov/other/mobileprivacypolicy.html)

## Description

The OSHA-NIOSH Heat Safety Tool provides location-specific, real-time heat index readings and hourly forecasts to help workers plan outdoor activities safely in hot conditions. It delivers risk-level indicators and precautionary recommendations from OSHA and NIOSH, enabling proactive safety decisions.

It includes editable location, temperature, and humidity controls, an interactive hourly forecast of heat index and risk levels, signs and symptoms of heat-related illnesses, and first aid guidance. This tool supports safer outdoor work planning and helps prevent heat-related illnesses.

## Rankings

- #109,558 — Overall
- #44 — prevent

## Review summary

Users widely praise OSHA-NIOSH Heat Safety Tool for practical heat risk guidance, hourly data, symptoms/first-aid tips, and usefulness for travelers and outdoor workers. The app’s long track record and Spanish version are valued. However, a dominant set of concerns repeats: crashes and failure to open, persistent data-loading issues, and inconsistent or non-real-time readings. Some improvements requested include real-time data, UV index, and a watch/notification companion. Overall, the app is valued but reliability and data delivery need fixing.

### Pros

- Comprehensive heat-safety guidance with a danger gauge, symptoms checklist, first aid tips, and an hourly breakdown of temperature and feels-like conditions.
- Highly useful and trusted by travelers and outdoor workers; long-running tool widely used by safety professionals; available in Spanish.
- Supports proactive planning and decision-making during heat waves.
- Location-based temperature data aids planning and safety decisions when the data is available.

### Cons

- Frequent crashes and the app closing on launch, making it unusable for many users.
- Weather data fetch/loading issues; data often doesn’t load or update, or fails to connect.
- Inaccurate or non-real-time readings (reliance on hourly data and occasional mismatch with actual conditions).
- Missing features and improvements requested by users (UV index, watch/app notifications) and ongoing bug fixes.

## Similar extensions and apps

- [Heat Safety](https://chrome-stats.com/d/id6472613736) — 4.60 / 5
- [Heat Index: NIOSH Calculator](https://chrome-stats.com/d/id6760123940) — 4.50 / 5
- [Sports Heat Tool](https://chrome-stats.com/d/id6773559030)
- [AIHA Heat Stress App](https://chrome-stats.com/d/id6478508187) — 3.10 / 5
- [Heat Index & Category Computer](https://chrome-stats.com/d/id370913314) — 5.00 / 5
- [Heat Illness Toolkit](https://chrome-stats.com/d/id6462538074)
- [Heat Index: Worksite Safety](https://chrome-stats.com/d/id6777557760) — 5.00 / 5
- [Heats: Heat Index & UV](https://chrome-stats.com/d/id6749148814) — 5.00 / 5
- [Heat Safety Pro](https://chrome-stats.com/d/id6753221121)
- [Heat Index: Wet Bulb](https://chrome-stats.com/d/id6759363962) — 5.00 / 5
- [HeatGuard: Heat Index](https://chrome-stats.com/d/id6780215223)
- [HeatSafe WBGT](https://chrome-stats.com/d/id6781332510) — 3.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id1239425102)