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Best Heat Sensor Apps

250+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated August 2026

The best heat sensor apps on iPhone average 4.0ā˜… across 250+ titles ā€” we've ranked them by what real users actually keep on their phones. Updated August 2026.

Compare top Heat Sensor Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flir OneFlir OneFree4.6ā˜… (7.6K)NoYesAug 2026
2Night Vision Thermal CameraNight Vision Thermal CameraFree3.7ā˜… (24K)NoYesAug 2026
3Thermal XplorerThermal XplorerFree1.8ā˜… (12)NoNoJul 2026
4MobIRMobIRFree2.2ā˜… (5)NoNoJul 2026
5Heat Sensor CameraHeat Sensor CameraFree4.5ā˜… (107)YesYesAug 2026
6Thermal & Night Vision CameraThermal & Night Vision CameraFree4.4ā˜… (735)YesYesAug 2026
7TempPro SensorTempPro SensorFree4.7ā˜… (11K)NoNoAug 2026
8Thermal Vision FX Camera :iTVCThermal Vision FX Camera :iTVCFree4.4ā˜… (793)YesNoAug 2026

Top Picks for Heat Sensor

Flir One#1

Flir One by FLIR Systems Aktiebolag

Thermal Camera for Smartphones
Editor's Choice
šŸ“· Photo & Video
4.6šŸ˜(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

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

Room to Improve

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

Night Vision Thermal Camera by Florian Winter

Live camera filter effects
Strong Contender
šŸ“· Photo & Video
3.7šŸ˜ž(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

  • šŸ‘ Reliable for paranormal investigations
  • šŸš€ Useful for detecting heat signatures
  • šŸ” Good object detection capabilities

Room to Improve

  • šŸ› Thermal camera doesn't work as advertised
  • šŸ› Night vision mode is just a color filter
  • šŸ’ø Many features locked behind paywall

More Heat Sensor apps to explore

4
MobIR
MobIR
MobIR
MobIR
Free

This app transforms your device into a professional thermal imaging camera. It allows real-time temperature measurement, customizable color palettes, and the ability to capture photos and videos. Analyze thermal data, browse media, and utilize cloud features for enhanced functionality.

Real-time temperature measurementCustomizable color palettesPhoto and video capture
šŸ”§ Utilities
(5)
free
5
Heat Sensor Camera
Heat Sensor Camera
Heat Sensor Camera
Thermal Heat Camera
Free

Explore the unseen with this app that simulates thermal imaging and night vision. It uses EMF and radar sensors to detect energy changes, aiding in paranormal investigations or creative visual effects. Designed for both beginners and enthusiasts of the unknown.

Simulated thermal camera filterNight vision modeEMF and radar spirit detection
šŸ” Reference
(107)
free with in-app purchases
6
Thermal & Night Vision Camera
Thermal & Night Vision Camera
Thermal & Night Vision Camera
Heat sensor effects
Free

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.

Real-time thermal camera simulationNight vision camera effectsApply effects to live footage
šŸ“· Photo & Video
(735)
free with in-app purchases
7
TempPro Sensor
TempPro Sensor
TempPro Sensor
by iTronics Co., Limited
Free

Monitor real-time temperature and humidity with historical data up to one year. Receive alerts when readings fall outside your set range, ensuring optimal conditions.

Real-time temperature displayReal-time humidity displayHeat index display
šŸŒŸ Lifestyle
(11K)
free
8
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
šŸ“· Photo & Video
(793)
ad-supported
9
Phone Temperature
Phone Temperature
Phone Temperature
Battery Life & Game Booster
Free

Monitor and manage your phone's heat in real time with smart cooling tools and an easy dashboard. Optimize performance and extend device life with live thermal tracking and one-tap modes for gaming, battery saving, and everyday use.

Real-time thermal monitoringSmart cooling profilesPowerful cooling actions
šŸ”§ Utilities
(140)
free with in-app purchases
10
Heat Index: Worksite Safety
Heat Index: Worksite Safety
Heat Index: Worksite Safety
Live sensor heat-break alerts
Free

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.

Live heat index readingsHome Screen widget12-month history chart
šŸ”§ Utilities
(1)
free
11
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
šŸ“· Photo & Video
(6.4K)
subscription
12
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
šŸ”§ Utilities
(20K)
free with in-app purchases
13
HeatSafe WBGT
HeatSafe WBGT
HeatSafe WBGT
Live heat-risk & WBGT safety
Free
ā˜€ļø Weather
(0)
14
Heat Safety Pro
Heat Safety Pro
Heat Safety Pro
Wet Bulb Temperature App
Free
ā˜€ļø Weather
(0)
15
Room Temperature Checker
Room Temperature Checker
Room Temperature Checker
Indoor Outdoor Thermometer
Free
ā˜€ļø Weather
(0)
16
Heat Engineer
Heat Engineer
Heat Engineer
by Heat Engineer Software Ltd
Free

This app assists heating engineers and surveyors in collecting property data for heating system installations. It supports heat loss reports for various technologies and includes tools for sound assessments and quick estimations. Data is automatically saved for later review and amendment.

Heat loss survey for BS EN 12831, CIBSE, and MCS standardsMCS 020 sound assessment for Air Source Heat PumpsQuick heat loss estimator tool
šŸ“Š Productivity
(0)
free
17
WiFi Heatmap Planner: HeatFi
WiFi Heatmap Planner: HeatFi
WiFi Heatmap Planner: HeatFi
Signal coverage, analyzer
Free
šŸ”§ Utilities
(0)
18
Room Thermometer : Indoor
Room Thermometer : Indoor
Room Thermometer : Indoor
Indoor Temperature
Free
ā˜€ļø Weather
(0)
19
Sports Heat Tool
Sports Heat Tool
Sports Heat Tool
by Federico Tartarini
Free
šŸ”§ Utilities
(0)
20
Heat Illness Toolkit
Heat Illness Toolkit
Heat Illness Toolkit
by Primoris Services Corporation
Free
šŸ” Reference
(0)

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FAQ about Heat Sensor

What are the best heat sensor apps for iPhone?
Flir One tops our heat sensor 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 ā€” 20 of the top heat sensor 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 250+ heat sensor 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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