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Best Temperature Gun Apps

249+ iOS apps curated and reviewed

3.5 avg rating
20 free apps
Updated July 2026

Whether you're new to temperature gun or looking for an upgrade, our curated collection of 249+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Temperature Gun Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flir OneFlir OneFree4.6★ (7.6K)NoYesAug 2026
2Temperature CheckingTemperature CheckingFree2.3★ (28)NoNoMay 2026
3Fever Thermometer | Body TempFever Thermometer | Body TempFree4.3★ (257)YesYesAug 2026
4Temperature CheckerTemperature CheckerFree4.2★ (6)NoYesAug 2026
5RIDGID ThermalRIDGID ThermalFree1.8★ (128)NoNoMay 2026
6Fahrenheit Thermometer PlusFahrenheit Thermometer PlusFree4.3★ (269)YesNoAug 2026
7ThermoWorksThermoWorksFree4.8★ (16K)NoNoAug 2026
8Temperature Sensor ReaderTemperature Sensor ReaderFree—NoNoMay 2026

Top Picks for Temperature Gun

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
Temperature Checking#2

Temperature Checking by Athena Security

Temperature Detection
Strong Contender
💼 Business
2.3(28 ratings)
Free
Temperature Checking screenshot 1
Temperature Checking screenshot 2

This software connects to specialized hardware to detect body temperature and identify potential threats. It offers AI-powered features for security, including face mask detection and people counting, with reporting capabilities.

Fever Thermometer | Body Temp#3

Fever Thermometer | Body Temp by Yana Shestakova

Temperature App for 98.6 Gauge
Worth Considering
🏥 Medical
4.3(257 ratings)
FreeAdsIn-App Purchases
Fever Thermometer | Body Temp screenshot 1
Fever Thermometer | Body Temp screenshot 2
Fever Thermometer | Body Temp screenshot 3
Fever Thermometer | Body Temp screenshot 4

Easily log and track body temperature for yourself and your family. Record measurements, add notes about health conditions or medications, and view a clear history of your readings. This utility does not require signup or internet access.

More Temperature Gun apps to explore

4
Temperature Checker
Temperature Checker
Temperature Checker
Room & Body Heat Monitor
Free

Monitor your environment and personal well-being with this dual-purpose temperature tracker. It provides hyper-local weather forecasts and allows for quick logging of body temperature, offering insights into comfort and wellness.

Dual temperature tracking (weather, room, body)Live weather forecastsSmart profiles for family and friends
💪 Health & Fitness
(6)
free with in-app purchases
5
RIDGID Thermal
RIDGID Thermal
RIDGID Thermal
by The Ridge Tool Company
Free

Connect to Wi-Fi enabled thermal imagers to transfer, analyze, and organize thermal images on your smartphone or tablet. Easily add measurements, annotations, and adjust color palettes before saving and sharing your findings.

Wi-Fi image transferThermal image analysisSpot measurements
📷 Photo & Video
(128)
free
6
Fahrenheit Thermometer Plus
Fahrenheit Thermometer Plus
Fahrenheit Thermometer Plus
Celsius Converter, Barometer
Free

This free digital thermometer app uses GPS to measure and display the ambient temperature in Fahrenheit. It includes a Fahrenheit to Celsius conversion calculator and a barometer function for compatible devices. It also shows sunrise and sunset times, offering a reference for outdoor activities.

GPS ambient temperature measurementFahrenheit to Celsius conversion calculatorBarometer function (iPhone 6/Plus and later)
🔧 Utilities
(269)
ad-supported
7
ThermoWorks
ThermoWorks
ThermoWorks
by ThermoWorks, Inc
Free

Monitor cooking, BBQ, and ambient temperatures with compatible Bluetooth and Wi-Fi devices. Features enhanced graphing, alarms with push notifications, and cloud storage for session data. Ideal for professionals and enthusiasts needing precise temperature control.

Real-time temperature monitoringCustomizable temperature alarmsPush notifications for alerts
🔧 Utilities
(16K)
free
8
Temperature Sensor Reader
Temperature Sensor Reader
Temperature Sensor Reader
by Keeping It Cool, Inc.
Free
💼 Business
(0)
9
Thermometer
Thermometer
Thermometer
Temperature & More
Free

This app transforms your iPhone or iPod Touch into a thermometer, displaying the exact outside temperature based on your current location. It provides detailed local weather conditions and allows you to check temperatures for other cities.

Real-time outdoor temperature displayLocation-based temperature readingsLocal weather condition reports
🔧 Utilities
(4.2K)
free with in-app purchases
10
Room Temperature & Thermometer
Room Temperature & Thermometer
Room Temperature & Thermometer
Temperature Checker For Room
Free

This app provides real-time room temperature readings, humidity tracking, and local weather forecasts. It functions as a digital thermometer, temperature sensor, and ambient temperature sensor for home or office use. View temperatures in Celsius or Fahrenheit and monitor your indoor climate for comfort and safety.

Real-time room temperature monitoringHumidity trackerLocal weather forecasts
☀️ Weather
(1)
free with in-app purchases
11
HD Thermometer ⊎
HD Thermometer ⊎
HD Thermometer ⊎
Current temperature & more
Free

Displays the current temperature for your location using a weather service. Offers a clean, rustic interface and allows saving multiple locations. Not a true thermometer, it relies on external data for accuracy.

Current location temperature displayRustic style interfaceSave multiple locations
☀️ Weather
(13K)
free with in-app purchases
12
Room Temperature Checker
Room Temperature Checker
Room Temperature Checker
Indoor Outdoor Thermometer
Free
☀️ Weather
(0)
13
Temperature Converter
Temperature Converter
Temperature Converter
Celsius, Fahrenheit, Kelvin
Free

Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with a simple scrolling interface. Adjust values and see conversions update instantly.

Scrollable temperature pickerAutomatic real-time conversionSupports Celsius
🌟 Lifestyle
(2)
free
14
Heatgun Direct
Heatgun Direct
Heatgun Direct
Shop Leister Heat Guns
Free
🛍️ Shopping
(0)
15
WBGT Calculator
WBGT Calculator
WBGT Calculator
by Marco van Oostende
Free
⚽ Sports
(0)
16
Thermometer for Room +
Thermometer for Room +
Thermometer for Room +
Temperature in Room
Free

Monitor your indoor room temperature and get real-time outdoor weather updates. Easily switch between Celsius and Fahrenheit to stay in control of your comfort and environment, whether at home or on the go.

Indoor temperature monitoringReal-time outdoor weatherCelsius/Fahrenheit units
☀️ Weather
(3)
free with in-app purchases
17
Temperature Checker Celsius
Temperature Checker Celsius
Temperature Checker Celsius
temperature app converter
Free

This utility app provides instant conversions between various temperature scales, including Celsius, Fahrenheit, and Kelvin. It features a user-friendly interface for quick and accurate calculations, making it ideal for everyday use in cooking, travel, or academic projects.

Instant temperature conversionSupports Celsius, Fahrenheit, KelvinUser-friendly interface
🔧 Utilities
(0)
freemium
18
Temperature Converter
Temperature Converter
Temperature Converter
by Ranjit Parmar
Free
☀️ Weather
(0)
19
w_b_temp
w_b_temp
w_b_temp
Get the wet bulb temperature
Free
🔧 Utilities
(0)
20
Room Temperature : Thermometer
Room Temperature : Thermometer
Room Temperature : Thermometer
Check Indoor Room Temperature
Free

This app helps you monitor the indoor temperature of your room. It offers unlimited weather details and temperature checks with an ad-free experience through a premium subscription. Various subscription plans are available for extended access.

Indoor room temperature monitoringUnlimited weather detailsAd-free experience (premium)
☀️ Weather
(10)
free with in-app purchases

FAQ about Temperature Gun

What are the best temperature gun apps for iPhone?
Flir One tops our temperature gun apps ranking as of July 2026, with a 4.6-star average from 7.6K App Store ratings, and it's free to download.
Yes — 20 of the top temperature gun apps we rank are free to download, including Flir One and Temperature Checking.
Flir One has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 249+ temperature gun apps on the iOS App Store as of July 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.