Best Free Temperature Reader Apps

214+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated July 2026

Finding the right free temperature reader apps can be overwhelming with so many options. We've analyzed 214+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Free Temperature Reader Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ThermometerThermometerFree4.4★ (4.2K)YesYesAug 2026
2Temperature CheckerTemperature CheckerFree4.2★ (6)NoYesAug 2026
3Body Temperature App For FeverBody Temperature App For FeverFree4.7★ (22K)NoYesAug 2026
4Room Temperature Thermometer.Room Temperature Thermometer.Free3.9★ (332)YesNoAug 2026
5Fever Thermometer | Body TempFever Thermometer | Body TempFree4.3★ (257)YesYesAug 2026
6Thermometer - Indoor & OutdoorThermometer - Indoor & OutdoorFree4.2★ (2.6K)YesNoAug 2026
7Thermometer Body TempThermometer Body TempFree4.4★ (308)YesYesAug 2026
8Thermometer: Body TemperatureThermometer: Body TemperatureFree4.6★ (401)NoYesAug 2026

Top Picks for Free Temperature Reader

Thermometer#1

Thermometer by Alexandre Morcos

Temperature & More
Editor's Choice
🔧 Utilities
4.4😞(4.2K ratings)
FreeAdsIn-App Purchases
Thermometer screenshot 1
Thermometer screenshot 2
Thermometer screenshot 3
Thermometer screenshot 4

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.

What We Love

  • 👍 Simple and easy to use
  • 🚀 Quick temperature display
  • 💡 Useful for checking outdoor temperature

Room to Improve

  • 🐛 Inaccurate temperature readings
  • 🔍 Doesn't measure room/indoor temperature
  • 💤 Doesn't update temperature in real-time
Temperature Checker#2

Temperature Checker by Mehmet Ali Demir

Room & Body Heat Monitor
Strong Contender
💪 Health & Fitness
4.2(6 ratings)
FreeIn-App Purchases
Temperature Checker screenshot 1
Temperature Checker screenshot 2
Temperature Checker screenshot 3
Temperature Checker screenshot 4
Temperature Checker screenshot 5
Temperature Checker screenshot 6

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.

Body Temperature App For Fever#3

Body Temperature App For Fever by AboutMe Apps, Inc.

Thermometer. Checker. Tracker
Worth Considering
🏥 Medical
4.7😞(22K ratings)
FreeIn-App Purchases
#18in Medical
Body Temperature App For Fever screenshot 1
Body Temperature App For Fever screenshot 2
Body Temperature App For Fever screenshot 3
Body Temperature App For Fever screenshot 4
Body Temperature App For Fever screenshot 5
Body Temperature App For Fever screenshot 6

Estimate and track body temperature trends to monitor potential fever symptoms. Log data, export reports for healthcare providers, and monitor family members' temperatures. Includes features like heart rate estimation and symptom tracking.

What We Love

  • ⭐ Accurate temperature readings
  • 📊 Helpful for tracking health symptoms
  • 🔍 Useful when no thermometer is available

Room to Improve

  • 💰 Subscription-based model
  • 🤔 Misleading claims about temperature measurement
  • 🤖 Inaccurate temperature estimates

More Free Temperature Reader apps to explore

4
Room Temperature Thermometer.
Room Temperature Thermometer.
Room Temperature Thermometer.
Temperature & Thermometer
Free

Monitor your room's real-time temperature and humidity with a comfort indicator. Enjoy relaxing weather sounds and receive daily tips for a healthier lifestyle. Features a sleep timer for peaceful rest.

Real-time room temperatureHumidity level detectionComfort status indicator
☀️ Weather
(332)
ad-supported
5
Fever Thermometer | Body Temp
Fever Thermometer | Body Temp
Fever Thermometer | Body Temp
Temperature App for 98.6 Gauge
Free

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.

Log body temperatureTrack family temperatureAdd notes for health/medication
🏥 Medical
(257)
freemium
6
Thermometer - Indoor & Outdoor
Thermometer - Indoor & Outdoor
Thermometer - Indoor & Outdoor
Room Temp Thermometer
Free

This app provides real-time temperature readings for both indoor room environments and outdoor locations worldwide. It offers detailed weather forecasts, including hourly and daily predictions, wind speed, humidity, and sunrise/sunset times. Easily monitor your home comfort or plan your travels with location-based weather information.

Real-time indoor temperature monitoringOutdoor temperature and full weather reportHourly and daily weather forecasts
☀️ Weather
(2.6K)
free with in-app purchases
7
Thermometer Body Temp
Thermometer Body Temp
Thermometer Body Temp
Temperature monitor & check
Free

Easily track and analyze your body temperature readings on your iOS device. Record measurements in Celsius or Fahrenheit, add notes about symptoms, and generate shareable reports for healthcare professionals. The app offers cloud storage, multiple profiles, and helpful reminders.

Record temperature in Celsius and FahrenheitAdd notes and symptom dataCloud storage and multi-device access
🏥 Medical
(308)
free with in-app purchases
8
Thermometer: Body Temperature
Thermometer: Body Temperature
Thermometer: Body Temperature
Fever & Temperature Checker
Free

Estimate body temperature using your smartphone without a physical thermometer. Track heart rate, blood pressure, and sync with Apple Watch for real-time fever alerts. Log custom health data and generate shareable PDF reports.

Temperature estimation without a thermometerApple Watch Series 8 sync for readingsHigh fever alerts
💪 Health & Fitness
(401)
free with in-app purchases
9
Thermometer -Temperature Today
Thermometer -Temperature Today
Thermometer -Temperature Today
Temperature checker - weather
Free

This app provides real-time ambient temperature and humidity readings, along with daily weather forecasts. It offers a user-friendly interface to check current conditions, humidity levels, and environmental data like wind speed and air pressure. Easily switch between measurement units for a personalized weather experience.

Temperature estimationTemperature and humidity checkerWeather temperature check
☀️ Weather
(150)
free
10
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
11
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
🌟 Lifestyle
(11K)
free
12
Thermometer++ App
Thermometer++ App
Thermometer++ App
Temperature and more
Free

Transform your device into a precise thermometer. Get real-time outdoor temperature, humidity, pressure, and wind data for your current location. Utilizes AI to combine data from multiple sources for accurate, up-to-the-minute weather information.

Real-time temperature, humidity, pressure, and windThermometer, barometer, and hygrometer functionsCurrent location or custom location selection
☀️ Weather
(7.2K)
free with in-app purchases
13
Temperature Sensor Reader
Temperature Sensor Reader
Temperature Sensor Reader
by Keeping It Cool, Inc.
Free
💼 Business
(0)
14
Indoor Thermometer
Indoor Thermometer
Indoor Thermometer
Indoor temp, outfit & tips
Free

This app provides accurate indoor temperature readings in Celsius and Fahrenheit, along with outdoor weather context. It offers outfit suggestions, seasonal lifestyle tips, and the ability to create and share custom temperature cards with themed wallpapers.

Accurate indoor temperature (°C / °F)Outdoor weather comparisonOutfit and clothing recommendations
☀️ Weather
(2.1K)
ad-supported
15
Body Temperature & Thermometer
Body Temperature & Thermometer
Body Temperature & Thermometer
Temperature Tracker & Analyzer
Free

Log and analyze your body temperature with detailed symptom tracking. Visualize trends with interactive charts and export your health records. Supports multiple languages for global users.

Body temperature trackingSymptom loggingInteractive charts
🔧 Utilities
(57)
ad-supported
16
iCelsius
iCelsius
iCelsius
by Aginova Sarl
Free

Transform your iPhone, iPad, or iPod touch into a digital thermometer with this app. It works with a separate hardware probe to measure temperatures of liquids and other substances, create graphs, and set alerts. Ideal for cooking, science education, and quality control.

Live temperature displayTemperature graphing with pan/zoomConfigurable temperature alarms
🔧 Utilities
(139)
free
17
Body Temperature App
Body Temperature App
Body Temperature App
Body Temperature Log For Fever
Free

This app allows users to log body temperature readings along with associated symptoms like cough or body pain. It facilitates easy sharing of this data with healthcare providers via email. The application supports managing records for multiple individuals and integrates with Apple's Health App.

Log body temperature readingsRecord associated symptomsShare data via email
🏥 Medical
(454)
free with in-app purchases
18
Body Temperature, Thermometer
Body Temperature, Thermometer
Body Temperature, Thermometer
Digital Tracker
Free

Easily log and analyze your temperature readings to track trends over time. This app provides a user-friendly interface for recording data and offers secure storage for your health history. It's designed to help you manage temperature information efficiently.

Easy temperature loggingDetailed history and trendsSecure data storage
🏥 Medical
(26)
free with in-app purchases
19
Weather and Climate Tracker
Weather and Climate Tracker
Weather and Climate Tracker
Widget, rain map, storm alerts
Free

This weather app offers a familiar interface across all your devices, with customizable display options like larger text and high contrast. It caters to users with specific needs, such as different measurement units, and provides detailed weather information.

Familiar interface on all devicesHigh contrast displayAdjustable text size
☀️ Weather
(1.8K)
free with in-app purchases
20
Body Temperature Tracer
Body Temperature Tracer
Body Temperature Tracer
Analyse & monitor Temperature
Free

Easily record and visualize your body temperature trends. This tool helps you monitor your health and that of your family or patients through graphical representations. Remember, this app's measurements are for recommendation only and not for medical diagnosis.

Record body temperatureGenerate graphical representationsMonitor family health
💪 Health & Fitness
(33)
ad-supported

FAQ about Free Temperature Reader

What are the best free temperature reader apps for iPhone?
Thermometer tops our free temperature reader apps ranking as of July 2026, with a 4.4-star average from 4.2K App Store ratings, and it's free to download.
Thermometer shows ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 214+ free temperature reader apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This application turns your iPhone or iPod Touch into a thermometer. It provides the exact outside temperature based on your current location, either through GPS or WiFi. It also displays local weather conditions like high and low temperatures, wind speed, and humidity.
The app claims to be the most accurate thermometer application on the AppStore. It retrieves real-time outdoor temperature data based on your current location to provide precise readings.