Best Thermal Imager Apps

247+ iOS apps curated and reviewed

2.8 avg rating
20 free apps
Updated November 2026

Looking for free thermal imager apps? 20 of our 247+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Thermal Imager Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flir OneFlir OneFree4.6★ (7.6K)NoYesNov 2026
2Infrared Thermal ImagerInfrared Thermal ImagerFree3.0★ (1)NoNoSep 2026
3Thermal TI270/TI290Thermal TI270/TI290Free2.4★ (5)NoNoMay 2026
4Thermal ImagerThermal ImagerFree—NoNoOct 2026
5Night Vision Thermal CameraNight Vision Thermal CameraFree3.7★ (24K)NoYesNov 2026
6Thermal ProThermal ProFree1.0★ (1)NoNoOct 2026
7AccuHeatAccuHeatFree—NoNoNov 2026
8Teslong ThermalTeslong ThermalFree—NoNoOct 2026

Top Picks for Thermal Imager

Flir One#1

Flir One by FLIR Systems Aktiebolag

Thermal Camera for Smartphones
Editor's Choice
📷 Photo & Video
4.6😐(7.6K ratings)
FreeIn-App Purchases
Flir One screenshot 1
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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

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

Room to Improve

  • 🐛 Image alignment issues
  • 🐛 Scam - won't connect
  • 🐛 Poor App/Image refresh
  • 🐛 Waste of money
  • 🐛 Poor UX, only real option
  • 🔋 Poor battery life
  • 🔒 Privacy issue
  • 🔒 Requires full access to photos
  • 🔒 Watermark advertising
3.0(1 ratings)
Free
Infrared Thermal Imager screenshot 1
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Infrared Thermal Imager screenshot 6

This utility app functions as a thermal camera, offering a wide temperature measurement range. It allows users to capture images and videos, track high and low temperatures, and set custom alarms for temperature thresholds. The app also supports various regional temperature measurement modes.

Thermal TI270/TI290#3

Thermal TI270/TI290 by Klein Tools

Klein Thermal Imager TI270/290
Worth Considering
📊 Productivity
2.4(5 ratings)
Free
Thermal TI270/TI290 screenshot 1
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Thermal TI270/TI290 screenshot 6

This professional thermal imager app displays hot and cold spots on a large LCD screen for quick troubleshooting. It offers high resolution with over 49,000 pixels, multiple color palettes, and temperature tracking features.

More Thermal Imager apps to explore

FAQ about Thermal Imager

What are the best thermal imager apps for iPhone?
Flir One tops our thermal imager 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 — 20 of the top thermal imager apps we rank are free to download, including Flir One and Infrared Thermal Imager.
Flir One has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 247+ thermal imager apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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