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Best Temp Monitor Apps

249+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated September 2026

If you already know Device Monitor², this is the deeper bench. 249+ temp monitor apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Temp Monitor Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Device Monitor²Device Monitor²Free4.7★ (9.2K)NoYesSep 2026
2Device Monitor & DiagnosticsDevice Monitor & DiagnosticsFree4.0★ (107)NoYesSep 2026
3CPU Z: Device Monitor x DasherCPU Z: Device Monitor x DasherFree4.6★ (776)YesYesSep 2026
4System Status: hw monitorSystem Status: hw monitorFree4.7★ (2.5K)YesNoSep 2026
5TinyTemp MonitorTinyTemp MonitorFree—NoNoAug 2026
6Fever Thermometer | Body TempFever Thermometer | Body TempFree4.3★ (257)YesYesAug 2026
7Device Kit: CPU x RAM MonitorDevice Kit: CPU x RAM MonitorFree4.9★ (49)NoYesAug 2026
8Body Temperature・Fever CheckerBody Temperature・Fever CheckerFree—YesYesSep 2026

Top Picks for Temp Monitor

Device Monitor²#1

Device Monitor² by Fast-Devs Project

System activity info
Editor's Choice
🛠️ Developer Tools
4.7😊(9.2K ratings)
FreeIn-App Purchases
#41in Developer Tools
Device Monitor² screenshot 1
Device Monitor² screenshot 2
Device Monitor² screenshot 3
Device Monitor² screenshot 4
Device Monitor² screenshot 5
Device Monitor² screenshot 6

This app provides comprehensive system activity information for Apple devices, including detailed insights into hardware, sensors, and network status. It offers privacy controls, customizable widgets, and advanced testing and reporting features through optional in-app purchases.

What We Love

  • 🚀 Effective RAM cleaning
  • 🔍 Detailed device information
  • 🔧 Useful toolkit features
  • 💰 Fair one-time pricing

Room to Improve

  • 🐛 RAM cleaning issues after updates
  • 🔌 High background battery usage
  • 🕰️ Slow RAM cleaning process
Device Monitor & Diagnostics#2

Device Monitor & Diagnostics by Santiago Ramirez

CPU, System, Battery,Temp Info
Strong Contender
📊 Productivity
4.0(107 ratings)
FreeIn-App Purchases
Device Monitor & Diagnostics screenshot 1
Device Monitor & Diagnostics screenshot 2
Device Monitor & Diagnostics screenshot 3
Device Monitor & Diagnostics screenshot 4
Device Monitor & Diagnostics screenshot 5
Device Monitor & Diagnostics screenshot 6

Gain deep insights into your device's hardware and performance. Monitor CPU, RAM, battery, and sensors, and run diagnostic tests. Generate and export detailed system reports to optimize your device's health and functionality.

CPU Z: Device Monitor x Dasher#3

CPU Z: Device Monitor x Dasher by LE NGUYEN QUANG PHUOC

System Activity, CPU Monitor
Worth Considering
🔧 Utilities
4.6😐(776 ratings)
FreeAdsIn-App Purchases
CPU Z: Device Monitor x Dasher screenshot 1
CPU Z: Device Monitor x Dasher screenshot 2
CPU Z: Device Monitor x Dasher screenshot 3
CPU Z: Device Monitor x Dasher screenshot 4
CPU Z: Device Monitor x Dasher screenshot 5
CPU Z: Device Monitor x Dasher screenshot 6

This app provides detailed insights into your device's specifications, including display, hardware, network, camera, and battery information. It also offers a suite of tools like a storage cleaner, internet speed test, and network scanner. Enhance your device management with comprehensive system monitoring and utility features.

What We Love

  • 🚀 Great performance
  • 📊 Detailed hardware information
  • 👍 Clean and intuitive interface
  • 🔍 Useful monitoring features

Room to Improve

  • 💰 Aggressive monetization with ads and paywall
  • 🐛 Bugs and inaccuracies in reported data
  • 🔋 High battery consumption from widgets

More Temp Monitor apps to explore

4
System Status: hw monitor
System Status: hw monitor
System Status: hw monitor
CPU,battery,disk usage info
Free

Monitor your device's core performance metrics with this utility app. It provides real-time information on battery status, disk usage, CPU load, and network connections. Customize your view with light or dark themes and receive instant updates on system changes.

Graphical battery level displayDisk usage monitoringReal-time CPU usage
🔧 Utilities
(2.5K)
ad-supported
5
TinyTemp Monitor
TinyTemp Monitor
TinyTemp Monitor
Live temperature monitoring
Free
🔧 Utilities
(0)
6
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
7
Device Kit: CPU x RAM Monitor
Device Kit: CPU x RAM Monitor
Device Kit: CPU x RAM Monitor
Battery Temp & System Status
Free

Monitor your device's hardware performance in real-time with detailed CPU, memory, and battery usage. Access a suite of practical tools including weather, network diagnostics, and sensors. Visualize historical data with customizable charts and home screen widgets.

Real-time CPU, memory, and battery monitoringVisual data charts for performance trendsPicture-in-Picture mode for continuous monitoring
🔧 Utilities
(49)
freemium
8
Body Temperature・Fever Checker
Body Temperature・Fever Checker
Body Temperature・Fever Checker
Thermometer For Fever Tracker
Free
☀️ Weather
(0)
9
Usage - Device Monitor
Usage - Device Monitor
Usage - Device Monitor
Storage, network, battery
Free

Monitor your device's system activity and performance with detailed tracking of storage, memory, network, and battery usage. Customize graphs and widgets for instant insights, with cloud sync available. Upgrade to Pro for advanced features and comprehensive data.

Disk usage trackingRAM status monitoringNetwork activity monitoring
🔧 Utilities
(240)
free with in-app purchases
10
CPU-Pro: LiveDash
CPU-Pro: LiveDash
CPU-Pro: LiveDash
All-in-One Hardware Monitor
Free

Monitor your iPhone's hardware in real-time, including CPU, battery health, storage, and network status. Offers advanced tools, customizable dashboards, and various editions tailored to different user needs, from casual users to developers.

Real-time CPU stats and frequency trackingBattery health and cycle countStorage analysis and network speed test
📊 Productivity
(3)
free with in-app purchases
11
WBGT Heat: Wet Bulb Globe Temp
WBGT Heat: Wet Bulb Globe Temp
WBGT Heat: Wet Bulb Globe Temp
Wet Bulb Temperature Calc
Free

This tool calculates the Wet Bulb Globe Temperature (WBGT) for your location, a comprehensive measure of heat stress that considers temperature, humidity, wind, and sunlight. It provides color-coded safety levels and tailored guidance for various activities and professions.

Live outdoor WBGT calculationColor-coded safety flag levelsTailored guidance for different modes
☀️ Weather
(9)
free with in-app purchases
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
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
14
tempi.fi
tempi.fi
tempi.fi
Temperature & Humidity Sensors
Free

This app connects to wireless sensors to continuously monitor temperature and humidity. Receive alerts for out-of-range conditions, store historical data, and export readings in CSV format. Ideal for various environments like refrigerators, nurseries, and greenhouses.

Wireless sensor connectionContinuous temperature/humidity monitoringOut-of-range alerts
🔧 Utilities
(19)
free
15
Sense Monitor
Sense Monitor
Sense Monitor
Wireless Temperature monitor
Free
💼 Business
(0)
16
Room Thermometer : Indoor
Room Thermometer : Indoor
Room Thermometer : Indoor
Indoor Temperature
Free
☀️ Weather
(0)
17
Heart Monitor: Track & Care
Heart Monitor: Track & Care
Heart Monitor: Track & Care
Monitor heart rate, BP & more
Free

This app helps you monitor vital health indicators like heart rate, blood pressure, and blood glucose. It offers quick data capture via camera, comprehensive health records, and AI-powered insights for better self-care.

Heart Rate & HRV MeasurementQuick Data Capture via CameraComprehensive Health Records
🔧 Utilities
(3)
free with in-app purchases
18
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
19
CPU S : System Status Monitor
CPU S : System Status Monitor
CPU S : System Status Monitor
cpu,battery,disk information
Free
📊 Productivity
(0)
20
CORE Thermal Sensor
CORE Thermal Sensor
CORE Thermal Sensor
Temperature Monitoring System
Free

This app continuously monitors your core body temperature and thermal strain, providing critical data for heat training and optimal race performance. It helps athletes of all levels improve their training and achieve better results.

Continuous core body temperature monitoringReal-time Heat Strain IndexHeat Zones for training and racing
💪 Health & Fitness
(33)
free

FAQ about Temp Monitor

What are the best temp monitor apps for iPhone?
Device Monitor² tops our temp monitor apps ranking as of September 2026, with a 4.7-star average from 9.2K App Store ratings, and it's free to download.
Yes — 20 of the top temp monitor apps we rank are free to download, including Device Monitor² and Device Monitor & Diagnostics.
Device Monitor² has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ temp monitor apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Device Monitor² provides a comprehensive overview of your device's system activity, including detailed information about its hardware, sensors, RAM, storage, CPU, GPU, network, and battery. It also allows you to discover which sensors apps have access to, giving you control over your privacy.
Key features include clear and intuitive data visualization for various device components, sensor testing, customizable widgets for home and lock screens, app icon customization, and shortcuts to the Shortcuts app. Advanced features like deep memory cleaning, live activity for memory, and data export are available through optional in-app purchases.