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Best Niosh Heat Stress Apps

245+ iOS apps curated and reviewed

3.7 avg rating
20 free apps
Updated September 2026

OSHA is the household name in niosh heat stress, but it's far from the only option. We track 245+ alternatives and competitors on iOS โ€” many free, many higher-rated than you'd expect.

Compare top Niosh Heat Stress Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1OSHA-NIOSH Heat Safety ToolOSHA-NIOSH Heat Safety ToolFree2.6โ˜… (314)NoNoSep 2026
2Heat Index: NIOSH CalculatorHeat Index: NIOSH CalculatorFree4.4โ˜… (19)NoNoSep 2026
3Heat SafetyHeat SafetyFree4.6โ˜… (2.5K)YesYesSep 2026
4AIHA Heat Stress AppAIHA Heat Stress AppFree3.1โ˜… (8)NoNoJul 2026
5IATSE 891 Heat StressIATSE 891 Heat StressFreeโ€”NoNoJul 2026
6HeatAlert: Heat Stress IndexHeatAlert: Heat Stress IndexFree3.6โ˜… (11)NoNoSep 2026
7Program Heat StressยฎProgram Heat StressยฎFreeโ€”NoNoMay 2026
8Heat CompassHeat CompassFreeโ€”NoNoAug 2026

Top Picks for Niosh Heat Stress

OSHA-NIOSH Heat Safety Tool#1

OSHA-NIOSH Heat Safety Tool by Centers For Disease Control and Prevention

Editor's Choice
โ˜€๏ธ Weather
2.6๐Ÿ˜ž(314 ratings)
Free
#31in 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

  • ๐Ÿ’ก Valuable tool for heat safety
  • ๐Ÿ‘ Useful and informative
  • ๐Ÿ‘ Precise and accurate
  • ๐Ÿ‘ Great for tracking heat index
  • ๐Ÿ‘ Helpful precautionary and first aid information
  • ๐Ÿ‘ Available in Spanish

Room to Improve

  • ๐Ÿ› Crashes or doesn't load data
  • ๐Ÿ› Inaccurate or inconsistent temperature/heat index readings
  • ๐Ÿ› Doesn't work in Canada
  • ๐Ÿ› Frequent errors or connection issues
  • ๐Ÿ› Doesn't update or refresh properly
  • ๐Ÿ› Unreliable or not user-friendly
Heat Safety#3

Heat Safety by Qvyshift LLC

Heat Conditions and Forecasts
Worth Considering
โ˜€๏ธ Weather
4.6๐Ÿ˜ž(2.5K ratings)
FreeAdsIn-App Purchases
#79in Weather
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

  • ๐Ÿ‘ Straightforward, simple graphics
  • ๐Ÿš€ Works great initially
  • ๐Ÿ’ก Useful for understanding heat index/wet bulb temps

Room to Improve

  • ๐Ÿ› Suddenly stops working/retrieving info
  • ๐Ÿ› Inconsistent performance, won't give readings sometimes
  • ๐Ÿ› Crashes frequently when trying to get heat assessment

More Niosh Heat Stress apps to explore

FAQ about Niosh Heat Stress

What are the best niosh heat stress apps for iPhone?
OSHA-NIOSH Heat Safety Tool tops our niosh heat stress apps ranking as of September 2026, with a 2.6-star average from 314 App Store ratings, and it's free to download.
Yes โ€” 20 of the top niosh heat stress 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 September 2026.
We track 245+ niosh heat stress apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides real-time heat index information and hourly forecasts tailored to your location to help outdoor workers take precautions against heat. It also offers occupational safety and health recommendations from OSHA and NIOSH.
Key features include a visual indicator of the current heat index and risk levels, hourly forecasts with recommendations, customizable controls for temperature and humidity, and information on signs, symptoms, and first aid for heat-related illnesses.