Best Heat Sensor Apps

249+ iOS apps curated and reviewed

3.6 avg rating
20 free apps
Updated November 2026

The best heat sensor apps on iPhone average 3.6โ˜… across 249+ titles โ€” we've ranked them by what real users actually keep on their phones. Updated November 2026.

Compare top Heat Sensor Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flir OneFlir OneFree4.6โ˜… (7.6K)NoYesNov 2026
2Thermal XplorerThermal XplorerFree1.8โ˜… (16)NoNoOct 2026
3Heat Index: Worksite SafetyHeat Index: Worksite SafetyFree5.0โ˜… (2)NoNoOct 2026
4Night Vision Thermal CameraNight Vision Thermal CameraFree3.7โ˜… (24K)NoYesNov 2026
5Heat Sensor CameraHeat Sensor CameraFree4.5โ˜… (116)YesYesNov 2026
6TempPro SensorTempPro SensorFree4.7โ˜… (13K)NoNoNov 2026
7HeatSightHeatSightFree1.0โ˜… (1)NoNoOct 2026
8Kensa Heat PumpsKensa Heat PumpsFreeโ€”NoNoJul 2026

Top Picks for Heat Sensor

Flir One#1

Flir One by FLIR Systems Aktiebolag

Thermal Camera for Smartphones
4.6๐Ÿ˜(7.6K ratings)
FreeIn-App Purchases
Flir One screenshot 1
Flir One screenshot 2
Flir One screenshot 3
Flir One screenshot 4
Flir One screenshot 5

This app transforms your smartphone into a thermal imaging device when connected to a compatible camera. It helps identify hidden issues like water damage, electrical faults, and HVAC problems with advanced visual enhancements and measurement tools. Document and share your findings easily.

What We Love

  • ๐Ÿš€ Great for finding animals
  • ๐Ÿš€ Excellent affordable option for home inspection
  • ๐Ÿš€ Valued piece of tech for animal rescue
  • ๐Ÿš€ Excellent piece of equipment
  • ๐Ÿš€ Simple but informative
  • ๐Ÿš€ Works great as advertised & very user friendly
  • ๐Ÿš€ Awesome system saves time and money

Room to Improve

  • ๐Ÿ› Image alignment issues
  • ๐Ÿ› Scam - won't connect
  • ๐Ÿ› Poor App/Image refresh
  • ๐Ÿ› Waste of money
  • ๐Ÿ› Poor UX, only real option
  • ๐Ÿ”‹ Poor battery life
  • ๐Ÿ”’ Privacy issue
  • ๐Ÿ”’ Requires full access to photos
  • ๐Ÿ”’ Watermark advertising
Heat Index: Worksite Safety#3

Heat Index: Worksite Safety by Ninville Keith

Live sensor heat-break alerts
Worth Considering
๐Ÿ”ง Utilities
5.0(2 ratings)
Free
Heat Index: Worksite Safety screenshot 1
Heat Index: Worksite Safety screenshot 2
Heat Index: Worksite Safety screenshot 3
Heat Index: Worksite Safety screenshot 4
Heat Index: Worksite Safety screenshot 5
Heat Index: Worksite Safety screenshot 6

This app provides real-time heat index readings from a connected worksite sensor. It helps supervisors and managers determine if extra breaks are needed based on current temperature and humidity conditions, ensuring worksite safety.

More Heat Sensor apps to explore

FAQ about Heat Sensor

What are the best heat sensor apps for iPhone?
Flir One tops our heat sensor apps ranking as of November 2026, with a 4.6-star average from 7.6K App Store ratings, and it's free to download.
Yes โ€” 20 of the top heat sensor apps we rank are free to download, including Flir One and Thermal Xplorer.
Flir One has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 249+ heat sensor apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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