Best Niosh Heat Index Apps

249+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated November 2026

With an average user rating of 4.4★, the niosh heat index category is one of the App Store's strongest. Browse all 249+ apps we track, sorted so the most loved ones surface first.

Compare top Niosh Heat Index Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1OSHA-NIOSH Heat Safety ToolOSHA-NIOSH Heat Safety ToolFree2.6★ (316)NoNoOct 2026
2Heat Index: NIOSH CalculatorHeat Index: NIOSH CalculatorFree4.4★ (26)NoNoOct 2026
3Heat SafetyHeat SafetyFree4.6★ (2.8K)YesYesNov 2026
4NIOSH Sound Level MeterNIOSH Sound Level MeterFree4.7★ (17K)NoNoNov 2026
5Heat Index: Wet BulbHeat Index: Wet Bulb$2.995.0★ (2)NoNoOct 2026
6Heat Illness ToolkitHeat Illness ToolkitFree—NoNoMay 2026
7Heat Index & Wet Bulb MonitorHeat Index & Wet Bulb MonitorFree5.0★ (1)NoNoNov 2026
8HeatGuard: Heat IndexHeatGuard: Heat IndexFree—NoYesSep 2026

Top Picks for Niosh Heat Index

2.6😞(316 ratings)
Free
#94in Weather
OSHA-NIOSH Heat Safety Tool screenshot 1
OSHA-NIOSH Heat Safety Tool screenshot 2
OSHA-NIOSH Heat Safety Tool screenshot 3
OSHA-NIOSH Heat Safety Tool screenshot 4
OSHA-NIOSH Heat Safety Tool screenshot 5
OSHA-NIOSH Heat Safety Tool screenshot 6

This tool helps outdoor workers stay safe by providing real-time heat index information and hourly forecasts specific to their location. It offers occupational safety recommendations and details on heat-related illnesses and their first aid.

What We Love

  • 💡 Valuable tool for heat safety
  • 👍 Useful and informative
  • 👍 Precise and accurate
  • 👍 Great for tracking heat index
  • 👍 Helpful precautionary and first aid information
  • 👍 Available in Spanish

Room to Improve

  • 🐛 Crashes or doesn't load data
  • 🐛 Inaccurate or inconsistent temperature/heat index readings
  • 🐛 Doesn't work in Canada
  • 🐛 Frequent errors or connection issues
  • 🐛 Doesn't update or refresh properly
  • 🐛 Unreliable or not user-friendly
Heat Index: NIOSH Calculator#2

Heat Index: NIOSH Calculator by Svitlana Kyrylova

Heat Safety & Risk Level Tool
Strong Contender
☀️ Weather
4.4(26 ratings)
Free
Heat Index: NIOSH Calculator screenshot 1
Heat Index: NIOSH Calculator screenshot 2
Heat Index: NIOSH Calculator screenshot 3

This tool calculates the heat index based on temperature and humidity, providing OSHA-calibrated risk levels and protective recommendations for outdoor work. It also includes a reference guide for heat-related illnesses and first aid.

Heat Safety#3

Heat Safety by Qvyshift LLC

Heat Conditions and Forecasts
Worth Considering
☀️ Weather
4.6😞(2.8K ratings)
FreeAdsIn-App Purchases
Heat Safety screenshot 1
Heat Safety screenshot 2
Heat Safety screenshot 3
Heat Safety screenshot 4
Heat Safety screenshot 5
Heat Safety screenshot 6

This tool helps prevent heat-related illnesses for outdoor workers by providing heat index and wet bulb temperature data. It offers current conditions and forecasts for US locations, using standardized risk level categorizations to help plan work activities and ensure safety.

What We Love

  • 👍 Straightforward, simple graphics
  • 🚀 Works great initially
  • 💡 Useful for understanding heat index/wet bulb temps

Room to Improve

  • 🐛 Suddenly stops working/retrieving info
  • 🐛 Inconsistent performance, won't give readings sometimes
  • 🐛 Crashes frequently when trying to get heat assessment

More Niosh Heat Index apps to explore

FAQ about Niosh Heat Index

What are the best niosh heat index apps for iPhone?
OSHA-NIOSH Heat Safety Tool tops our niosh heat index apps ranking as of November 2026, with a 2.6-star average from 316 App Store ratings, and it's free to download.
Yes — 19 of the top niosh heat index apps we rank are free to download, including OSHA-NIOSH Heat Safety Tool and Heat Index: NIOSH Calculator.
OSHA-NIOSH Heat Safety Tool has no ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 249+ niosh heat index apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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