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Best Thermal Heat Camera Apps

248+ iOS apps curated and reviewed

3.6 avg rating
20 free apps
Updated August 2026

The best thermal heat camera apps on iPhone average 3.6★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.

Compare top Thermal Heat Camera Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flir OneFlir OneFree4.6★ (7.6K)NoYesAug 2026
2Night Vision Thermal CameraNight Vision Thermal CameraFree3.7★ (24K)NoYesAug 2026
3Thermal & Night Vision CameraThermal & Night Vision CameraFree4.4★ (735)YesYesAug 2026
4Thermal XplorerThermal XplorerFree1.8★ (12)NoNoJul 2026
5Thermography CameraThermography CameraFree4.0★ (9)YesNoAug 2026
6Night Vision - Camera & VideoNight Vision - Camera & VideoFree4.5★ (6.4K)YesYesAug 2026
7Thermal Vision FX Camera :iTVCThermal Vision FX Camera :iTVCFree4.4★ (792)YesNoAug 2026
8Thermal TP SeriesThermal TP SeriesFree—NoNoMay 2026

Top Picks for Thermal Heat Camera

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
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

  • 🚀 Great for finding animals
  • 🚀 Excellent affordable option for home inspection
  • 🚀 Valued piece of tech for animal rescue
  • 🚀 Excellent piece of equipment

Room to Improve

  • 🐛 Image alignment issues
  • 🐛 Scam - won't connect
  • 🐛 Poor App/Image refresh
Night Vision Thermal Camera#2

Night Vision Thermal Camera by Florian Winter

Live camera filter effects
Strong Contender
📷 Photo & Video
3.7😞(24K ratings)
FreeIn-App Purchases
Night Vision Thermal Camera screenshot 1
Night Vision Thermal Camera screenshot 2
Night Vision Thermal Camera screenshot 3
Night Vision Thermal Camera screenshot 4

Explore the world in different spectrums with live camera filters. Apply night vision, thermal, or UV effects to your photos and videos. Discover hidden details and observe objects from a new perspective.

What We Love

  • 👍 Reliable for paranormal investigations
  • 🚀 Useful for detecting heat signatures
  • 🔍 Good object detection capabilities

Room to Improve

  • 🐛 Thermal camera doesn't work as advertised
  • 🐛 Night vision mode is just a color filter
  • 💸 Many features locked behind paywall
Thermal & Night Vision Camera#3

Thermal & Night Vision Camera by CAGE HOOPS LLC

Heat sensor effects
Worth Considering
📷 Photo & Video
4.4😞(735 ratings)
FreeAdsIn-App Purchases
Thermal & Night Vision Camera screenshot 1
Thermal & Night Vision Camera screenshot 2
Thermal & Night Vision Camera screenshot 3
Thermal & Night Vision Camera screenshot 4
Thermal & Night Vision Camera screenshot 5
Thermal & Night Vision Camera screenshot 6

Simulate thermal and night vision camera effects on your phone. Capture photos and videos with realistic heat patterns and low-light visuals. Apply filters to live footage or existing media from your gallery.

What We Love

  • 👍 Night vision functionality works reasonably well
  • 🎨 Good visual quality during daytime use
  • 💡 Fun and entertaining app for casual use
  • ⭐ Positive user experience for some users

Room to Improve

  • 💰 Misleading free-to-play model with mandatory paid subscription
  • 🐛 Thermal camera is inaccurate and non-functional
  • 🐛 Thermal imaging doesn't work in dark conditions despite claims

More Thermal Heat Camera apps to explore

4
Thermal Xplorer
Thermal Xplorer
Thermal Xplorer
by UNI-TREND TECHNOLOGY (CHINA) CO.,LTD.
Free

View real-time thermal images from compatible outdoor cameras via WiFi. This app allows for remote capture, video recording, and easy sharing of thermal imaging data, useful for both day and night observation.

Real-time thermal image viewingWiFi connection to camerasRemote capture functionality
🔧 Utilities
(12)
free
5
Thermography Camera
Thermography Camera
Thermography Camera
Infrared Camera
Free

Simulate infrared thermography camera effects on your photos with pseudo-color conversion. Easily apply interesting visual filters to your images for unique artistic processing. Note that this app cannot actually detect heat.

Pseudo-color conversionInfrared thermography simulationPhoto effects
📷 Photo & Video
(9)
ad-supported
6
Night Vision - Camera & Video
Night Vision - Camera & Video
Night Vision - Camera & Video
Super thermal cam infrared IR
Free

Transform your iPhone into a night vision device. Utilize advanced camera features to see in low-light conditions, with different range capabilities for front and back cameras. Explore enhanced visibility for various scenarios.

Night vision device functionalityLow-light visibilityThermal camera simulation
📷 Photo & Video
(6.4K)
subscription
7
Thermal Vision FX Camera :iTVC
Thermal Vision FX Camera :iTVC
Thermal Vision FX Camera :iTVC
Heat Imaging Filter Effects
Free

Apply real-time thermal-style heat vision filters to your camera feed. Enhance your photos and videos with unique visual effects. Supports standard iOS screen recording for video capture.

Real-time thermal vision filtersLive heat imaging effectsVideo recording via iOS screen recording
📷 Photo & Video
(792)
ad-supported
8
Thermal TP Series
Thermal TP Series
Thermal TP Series
by MILESEEY TECHNOLOGY (HONG KONG) CO. , LIMITED
Free

This utility app connects to a thermal camera to help users find hidden issues in electrical systems, HVAC, and water damage. It allows for temperature adjustments, color palette customization, and image/video capture.

Connects to TP2 Thermal CameraTroubleshoot electrical panelsPinpoint HVAC failures
🔧 Utilities
(0)
free
9
Vantrue Thermal
Vantrue Thermal
Vantrue Thermal
by Shenzhen Shancai Caifu Management Co.Ltd
Free
🔧 Utilities
(0)
10
Triplett InfraRead
Triplett InfraRead
Triplett InfraRead
by Triplett
Free
🔧 Utilities
(0)
11
Infrared Thermal Imager
Infrared Thermal Imager
Infrared Thermal Imager
Infrared Thermal Imager
Free

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.

Wide temperature measurement rangePicture and video captureHigh and low temperature tracking
🔧 Utilities
(1)
free
12
iSTC.
iSTC.
iSTC.
by HK Meet Ltd
Free

Connect a thermal image camera to your smartphone via Wi-Fi to view live thermal feeds. Analyze temperature data, capture images, and retrieve external measurement data from compatible products.

Wi-Fi connection to thermal camerasLive thermal image viewing on phoneMax/min/point temperature display
🔧 Utilities
(2)
free
13
Night Eyes - Night Camera
Night Eyes - Night Camera
Night Eyes - Night Camera
Low light photography
Free

Capture photos in low light conditions with advanced residual light amplification. Enhance images in real-time or use exposure mode for detailed shots. Includes a luminance histogram, digital zoom, and color filters.

Residual light amplificationReal-time illuminationExposure mode up to 1 second
🔧 Utilities
(20K)
free with in-app purchases
14
Major Tech Thermal-X
Major Tech Thermal-X
Major Tech Thermal-X
WIFI Thermal Measurements
Free
🔧 Utilities
(0)
15
Thermal Camera: Night Vision.
Thermal Camera: Night Vision.
Thermal Camera: Night Vision.
Imaging with infrared light
Free

Transform your photos with unique thermal filters and adjust their sensitivity for a personalized artistic vision. Save and share your creations easily with a simple, user-friendly interface. This app offers a gateway to extraordinary art for photographers of all levels.

Capture photos with thermal filtersAdjust filter sensitivitySave creations to device
🔧 Utilities
(49)
free with in-app purchases
16
Camera Effect Vision — Filters
Camera Effect Vision — Filters
Camera Effect Vision — Filters
Real-time Thermal Imaging
Free
🔧 Utilities
(0)
17
Thermal TI270/TI290
Thermal TI270/TI290
Thermal TI270/TI290
Klein Thermal Imager TI270/290
Free

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.

High-resolution thermal imagingWi-Fi enabled connectivityLarge LCD display
📊 Productivity
(5)
free
18
Alpen Outdoor
Alpen Outdoor
Alpen Outdoor
Alpen Thermal Outdoor
Free
🔧 Utilities
(0)
19
Thermal Viewer: IR Analyzer
Thermal Viewer: IR Analyzer
Thermal Viewer: IR Analyzer
Radiometric IS2 & Thermography
Free
🔧 Utilities
(0)
20
Thermalog
Thermalog
Thermalog
Monitor, Measure, Alert
Free
💼 Business
(0)

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FAQ about Thermal Heat Camera

What are the best thermal heat camera apps for iPhone?
Flir One tops our thermal heat camera apps ranking as of August 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 heat camera apps we rank are free to download, including Flir One and Night Vision Thermal Camera.
Flir One has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 248+ thermal heat camera apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
The FLIR ONE app works with a connected FLIR ONE series thermal camera to turn your smartphone into a thermal imager. It allows you to see heat signatures, capture thermal photos and videos, and analyze temperature data to identify problems like water leaks, electrical issues, or HVAC inefficiencies.
Key features include a live thermal camera view, the ability to capture and save photos/videos, temperature spot measurements, adjustable color palettes, and the option to add text notes. Advanced models offer automatic hot/cold spot tracking and IR scale adjustment. The app also supports cloud uploads for easy sharing and organization.

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