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Best Heat Thermometer Apps

249+ iOS apps curated and reviewed

3.8 avg rating
20 free apps
Updated July 2026

Looking for free heat thermometer apps? 20 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Heat Thermometer Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flir OneFlir OneFree4.6★ (7.5K)NoYesJul 2026
2Thermometer: Digital RoomThermometer: Digital RoomFree was $2.994.1★ (14)NoNoJul 2026
3HD Thermometer ⊎HD Thermometer ⊎Free4.3★ (13K)YesYesJul 2026
4HeatMaster:CILICO® ThermometerHeatMaster:CILICO® ThermometerFree5.0★ (1)NoNoMay 2026
5ThermometerThermometerFree4.4★ (3.9K)YesYesJul 2026
6MEATER® Smart Meat ThermometerMEATER® Smart Meat ThermometerFree4.7★ (126K)NoNoJul 2026
7‫صحيفة الإمارات اليوم‬‫صحيفة الإمارات اليوم‬Free3.3★ (22)YesNoJul 2026
8PCE ThermometerPCE ThermometerFree—NoNoMay 2026

Top Picks for Heat Thermometer

Flir One#1

Flir One by FLIR Systems Aktiebolag

Thermal Camera for Smartphones
Editor's Choice
📷 Photo & Video
4.6😐(7.5K 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
Thermometer: Digital Room#2

Thermometer: Digital Room by Tirin

Check indoor heat & weather!
Strong Contender
☀️ Weather
4.1(14 ratings)
FreeIn-App Purchases
Thermometer: Digital Room screenshot 1
Thermometer: Digital Room screenshot 2
Thermometer: Digital Room screenshot 3
Thermometer: Digital Room screenshot 4
Thermometer: Digital Room screenshot 5
Thermometer: Digital Room screenshot 6

This app transforms your smartphone into a precise digital thermometer. It displays real-time indoor room temperature, outdoor weather, and humidity levels with a classic retro interface. Customize themes and switch between Celsius and Fahrenheit for easy climate monitoring.

HD Thermometer ⊎#3

HD Thermometer ⊎ by Christophe Pereira

Current temperature & more
Worth Considering
☀️ Weather
4.3😐(13K ratings)
FreeAdsIn-App Purchases
#78in Weather
HD Thermometer ⊎ screenshot 1
HD Thermometer ⊎ screenshot 2
HD Thermometer ⊎ screenshot 3
HD Thermometer ⊎ screenshot 4

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.

What We Love

  • ✅ Accurate
  • 🚀 Simple and reliable
  • 💻 Convenient for checking temperatures
  • 🌍 Provides temperatures for multiple locations

Room to Improve

  • 🚫 Does not measure indoor/room temperature
  • 🤔 Relies on weather data rather than direct measurement
  • 💰 Paid version required to remove ads

More Heat Thermometer apps to explore

4
HeatMaster:CILICO® Thermometer
HeatMaster:CILICO® Thermometer
HeatMaster:CILICO® Thermometer
Real-Time Monitoring & Alerts
Free

This app provides real-time temperature monitoring for cooking, with customizable alerts and data logging. It supports dual-mode tracking for heating and cooling, with options for Celsius/Fahrenheit and CSV export.

Dual-mode real-time temperature monitoringCustomizable target temperatures and alertsCelsius/Fahrenheit unit switching
🔧 Utilities
(1)
free
5
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
(3.9K)
free with in-app purchases
6
MEATER® Smart Meat Thermometer
MEATER® Smart Meat Thermometer
MEATER® Smart Meat Thermometer
Bluetooth & WiFi Thermometer
Free

This app works with a wireless meat thermometer to help you cook meats perfectly. It provides cook time estimates, guided cooking instructions, and notifications when your food is ready. Monitor your food remotely and enjoy perfectly cooked meals every time.

Wireless meat thermometer integrationCook time estimatesGuided Cook™ system
🍔 Food & Drink
(126K)
free
7
‫صحيفة الإمارات اليوم‬
‫صحيفة الإمارات اليوم‬
‫صحيفة الإمارات اليوم‬
by EMARAT AL YOUM NEWSPAPER LLC
Free

Stay informed with the official news app from a leading UAE daily newspaper. Access local and regional news, customize your feed by section, and easily share articles via email or social media. Enjoy a user-friendly interface with adjustable font sizes for comfortable reading.

Local and regional news coverageCustomizable news sectionsArticle sharing via email and social media
📡 News
(22)
ad-supported
8
PCE Thermometer
PCE Thermometer
PCE Thermometer
by 广权 黄
Free
📊 Productivity
(0)
9
Bluetooth LE Thermometer
Bluetooth LE Thermometer
Bluetooth LE Thermometer
by Dawid Fouche
Free

This utility app connects to compatible Bluetooth low energy thermometer hardware. It displays real-time temperature readings and offers both a thermometer view and a graph view for data visualization. Ideal for DIY projects and custom temperature monitoring setups.

Bluetooth LE connectivityReal-time temperature updatesThermometer view
🔧 Utilities
(1)
free
10
Hehku - smart meat thermometer
Hehku - smart meat thermometer
Hehku - smart meat thermometer
Smart meat thermometer
Free
🍔 Food & Drink
(0)
11
Fête Magique
Fête Magique
Fête Magique
by TMSQR B.V.
Free
🎬 Entertainment
(0)
12
Thermalog
Thermalog
Thermalog
Monitor, Measure, Alert
Free
💼 Business
(0)
13
BFOUR+
BFOUR+
BFOUR+
Your Smart Cooking Assistant
Free

This smart cooking assistant connects to a wireless meat thermometer for real-time temperature monitoring and guided cooking. It offers alerts, custom calibration, and cooking history to help achieve perfect results for various meat types and doneness levels.

Real-time temperature monitoringWiFi wireless meat thermometer supportGuided cooking system
🔧 Utilities
(1)
free
14
MeatTemp: Meat Temps
MeatTemp: Meat Temps
MeatTemp: Meat Temps
Cook it right
Free
🍔 Food & Drink
(0)
15
Deiss Thermo
Deiss Thermo
Deiss Thermo
Deiss Thermo
Free
🍔 Food & Drink
(0)
16
Probe Innov
Probe Innov
Probe Innov
by Shenzhen Ruiteng Sci Tech Innovation Technology Co., Ltd
Free
🌟 Lifestyle
(0)
17
Grillbot
Grillbot
Grillbot
by Grillbot, LLC
Free
🔧 Utilities
(0)
18
BBQHERO
BBQHERO
BBQHERO
BBQHERO
Free
🔧 Utilities
(0)
19
ARmeator
ARmeator
ARmeator
Meat Thermometer
Free

This app connects to a wireless meat thermometer via Bluetooth to monitor cooking temperatures in real-time. It provides alerts when preset temperatures are reached and offers guided settings for various meats, ensuring perfect results for any cook.

Bluetooth connectivity to thermometerReal-time temperature monitoringCustomizable temperature alerts
🔧 Utilities
(6)
free
20
RoastTrack
RoastTrack
RoastTrack
by Shenzhen Xinghe Chuangxiang E-Commerce Co., Ltd.
Free

Monitor your cooking remotely with a Bluetooth-enabled meat thermometer. Get real-time temperature readings and alerts on your device, ensuring perfectly cooked meals for grilling and smoking. It offers extended battery life and a durable, waterproof design.

Bluetooth connectivityRemote temperature monitoringGrilling and smoking focus
🔧 Utilities
(13)
free

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FAQ about Heat Thermometer

What are the best heat thermometer apps for iPhone?
Flir One tops our heat thermometer apps ranking as of July 2026, with a 4.6-star average from 7.5K App Store ratings, and it's free to download.
Yes — 20 of the top heat thermometer apps we rank are free to download, including Flir One and Thermometer: Digital Room.
Flir One has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 249+ heat thermometer 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.

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