How to Check Room Temperature with iPhone (Update Guideline)

How to Check Room Temperature with iPhoneWondering how to check room temperature with iPhone?

Sadly, iPhone itself can’t measure temperature even if it has sensors. They aren’t made for the purpose rather than helping the phone to fight unfavorable conditions like overheating or any other sort of damages.

But there’s good news!

You’ll find many different iOS applications and external thermometers that can easily be integrated into your iPhone for accurate temperature measurement.

We’ll go deep inside and explore what apps to use. Also, review some of the best devices for measuring a room’s temperature with ease! Just before we get right into that, here’s why it’s important to monitor your room’s weather condition.

Why You Should Monitor Room Temp Regularly?

measure room temperature

Temperature has a massive impact on air quality. In summer, hot temperature causes more water evaporation from the environment. Consequently, it contains more moisture meaning the air is highly humid.

Humidity over 50% of the air will eventually damage the interior of our home.

It creates a favorable living condition for biological contaminants. Also, water-prone areas will become a breeding ground for mildew and mold that are highly responsible for many diseases.

On the other side, when it’s cold temperature, air can’t hold enough moisture so it’s low humid or dry. When humidity is below 30%, it starts to collect moisture from anywhere it possibly can.

From water-prone areas like shower, kitchen to wooden furniture or even your skin, lips, and nasal passages will dry out because of this dry air sucking up all.

So as you can see, both over humid and low humid air have an impact on our house and health. There comes the necessity to monitor a room’s temp regularly. If it’s over humid, you can use a dehumidifier to control the level.

Besides, you can use humidifiers and other cost-effective solutions to add humidity when it goes below what’s normal.

Does iPhone have a Thermometer? Can You Measure Temperature with it?

Does iPhone have a Thermometer

Talking straight to the question, it does NOT come with a default thermometer. Indeed, the apple smartphone temperature sensor is used for predicting a smooth operation of its functionalities like detecting battery damages, overheating, etc.

However, these sensors are integrated with thermometer software to predict temperature. Now the question is, can iPhone measure temperature with these apps?

The sad news is that it’s not very helpful. The fact is that the phone has its own body temperature and it dissipates heat to the air. That’s why it’s hard to measure accurate room temperature using the unintended sensor.

So, do you still want to measure room temperature on your iOS device?Well, there are two different options to go –1. Weather measurement apps.2. Install temperature measurement thermometers in your room and connect them with your iPhone using their associated apps. (Best Option)

Does Room Temperature App Give Accurate Data?

Does Room Temperature App Give Accurate Data

There’re many thermometer apps for iOS devices. Some of these apps are free to download and have limited features. So for more advanced features, useful widgets, and historical data, you’ll have to pay a fee.

When you install them, they will integrate with your iPhone’s sensor. So that’s how it’ll try to collect weather information and provide you.

However, since it’s the sensor is designed for the phone’s functionalities, data accuracy might be compromised. You might not get accurate readings always.

Other apps will connect to nearby weather forecasting services to collect reports. Hence, the prediction is precise but not useful guessed you didn’t want to know the outside weather condition. Actually, maximum app will provide you outside temperature data from their weather prediction system. 

In a nutshell, there are no iOS apps for checking your room temperature accurately!

Top 5 Temperature App for iPhone

Temperature App

A software application in your phone can never replace a high-quality thermometer that is built for that purpose. We’d always recommend using an external thermometer.

However, some of them will provide you with pretty useful outdoor environment data retrieving from weather stations, thus being closely reliable. So if you’re still interested, here’re our top 5 selected temperature apps to try out with your iPhone –

1. Real Thermometer

Real Thermometer

Reviews: 4.5 Stars • 43.7K Ratings

Technical Aspects:

  • Version 1.3
  • App Size 60.9 MB
  • iPhone Requires iOS 8.0 or later
  • Support iPad, iPod touch, Mac
  • Multiple language support

This is our best pick temperature app for iPhones. It’s free to download from the apple store link provided above. You can have quick access to outdoor temperature and the readings are very close to accurate.

One of the most amazing facts about this app is that it can also read your body temperature. Consequently, it has flexible location settings with both GPS and manual options. Not to forget that you can use both F and C scales as you prefer.

Note that, no apps are able to measure your room’s temperature. Indeed, they take data from nearby weather forecasting stations to display it for a specific area.


  • Easy to use interface
  • Manual region selection
  • GPS positioning for location
  • Whole day temp, current temp, body temp
  • Switch between Celsius & Fahrenheit scales
  • Auto and self-refresh


  • Free version will show you ads

2. HD Thermometer

HD Thermometer

Reviews: 4.2 Stars • 4.8K Ratings

Technical Aspects:

  • Version 9.19
  • App Size 103.6 MB
  • iPhone Requires iOS 9.3 or later
  • Support iPad, iPod touch, Mac
  • Multiple language support

This is a very simple and easy-to-use thermometer in your iPhone. But don’t get me wrong though, it’s not going to read your room’s temperature.

Instead, this software integrates with a weather service station online and retrieves your location data from there. So it’ll show you the outdoor weather condition what it gets from the station.

With flexible device compatibility, it seemed to be a great app. The developer of this app has made it more practical by adding multiple language options. As long as the file size is not an issue, this is a great iPhone temperature app to try out!


  • Very clean interface
  • Great user experience
  • Very precise data prediction
  • Current and saved locations
  • App control is satisfying


  • File size is a little bigger

3. Thermometer++


Download:Thermometer++ App for iPhone 4.7 Stars • 3.7K Ratings

Technical Aspects:

  • Version 5.2
  • Reflects new iOS 14.5 privacy features
  • App Size 15.5 MB
  • iPhone Requires iOS 12.0 or later
  • Support iPad, iPod touch, Mac
  • Supports multiple languages

It’s also an effective temperature app on iPhone that’s highly popular among users. It works the same way integrating to a nearby weather forecasting service station. So you’ll need to connect to the internet and data prediction is very close to accurate.

Like other apps, it has the option to choose a location. Besides, you can use both Fahrenheit and Celsius measuring options that suit you best. We liked this app for its smart and simple user interface that gives a great user experience.

Finally, if you want to save space, this lightweight software can be a go-to option!


  • Simple interface design
  • Effective data prediction
  • Very light software
  • Takes less space to download
  • Shows temp, humidity, pressure


  • The requirement iOS 12.0+ can be a hassle for some users

4. Digital Thermometer +

Digital Thermometer +

Download:Digital Thermometer + App for iPhone 4.6 Stars • 1.3K Ratings

Technical Aspects:

  • Version 1.3
  • App Size 35.3 MB
  • iPhone Requires iOS 9.0 or later
  • Support iPad, iPod touch, Mac
  • Supports multiple languages

If you’re looking for a fun way to show the temperature on your iPhone, Digital thermometer + is a great option! Say goodbye to traditional display apps! This is a bit modern yet easy-to-use digital thermometer app.

It’s free to download and comes with an intuitive display that looks very similar to a thermostat…we guess! Anyways, we like how it appears plus the effective prediction as well. You can measure temperature and humidity in different regions.

Consequently, allowing you to select the current location or select from your interest.

Best of all, its Celsius and Fahrenheit temp measurement scales come quite handy for people with different preferences. However, to have a more convenient ads-free user experience, you’ll have to upgrade to a paid version.


  • Shows temperature and humidity
  • Intuitive digital display
  • Fahrenheit and Celsius parameter
  • GPS location & manual
  • Effective and useful


  • Free version has advertisements

5. Thermometer


Download:Thermometer App for iPhone 4.4 Stars • 881K Ratings

Technical Aspects:

  • Version 2.7.4
  • App Size 97.9 MB
  • iPhone Requires iOS 11.0 or later
  • Support iPad, iPod touch, Mac
  • Supports multiple languages

So, the last one is yet another great temperature measurement mobile application. It’s also very popular among iPhone users in America. With very effective results, it can turn your phone into a digital thermometer.

Once installed, you’ll have to stay connected to the internet. Plus, turn on the GPS so it can automatically detect your current location. The output interface is quite fun and engaging that has a red filling temperature indicator LED.

For the most part, it can be used with iOS operating devices like iPad, iPod touch, or MAC. In addition, you’re free to choose a city manually for which you want to see the temperature and humidity data.

It will also generate weather reports, wind speed & direction data. Having multiple language options, the popularity is increasing globally.


  • Flexible location setting
  • Supports iOS devices
  • Precise outside temperature
  • Convenient user interface
  • Easy to use


  • Limited feature with the free version

Best iOS Supported Devices to Measure Room Temperature

iphone temperature device

So now it’s time to talk right on the point! We want to check a in-house temperature with iPhone. And note there’s no alternative to an external thermometer device.

The device will have an associated app to connect to your phone. Since it’s an actual thermometer made for that purpose, rest assured you’ll get accurate results in real-time. That said, here are some of the best iPhone compatible thermometers to purchase –

1. Govee Bluetooth Digital Indoor Thermometer

Technical Aspects:

  • DC power source
  • Requires 2 AAA batteries
  • Max. measurement 140 °F
  • 2 seconds refresh
  • 3-inch LCD

GOVEE has one of the best devices to measure room temperature with your iPhone. It has Bluetooth connectivity technology to sync with your phone. The large LCD is quite convenient and increases readability for anyone.

This thermometer hygrometer runs with batteries so it’s a DC power source. You’ll need 2AAA batteries to turn on and measure up to 140 °F.

It comes with smart features that help to monitor your room temperature and humidity. Besides, the comfort indicator is really awesome. Both Celsius and Fahrenheit measurement scales are available.

Being a smart hygrometer sensor, the response time is only 2 seconds. It means the device will refresh in 2 seconds and keep you always ahead of the curve. So leave all the stress and it’ll keep track of your room temperature records, thus sending you notifications when the preset range is crossed.

Best of all, you can use the associated iPhone app provided by Govee. This indoor thermometer app is available in the Apple Store and very easy to sync and get started. The Bluetooth range is quite huge that can cover rooms through walls away.

Overall, this budget thermometer is really awesome. No issues using with your iPhone. From smartness, durability to user experience and performance, you’ll hardly find a pair!

Highlighted Features:

  • Ease to read large digits
  • Highly useful functions
  • Records temp & humidity
  • Wide Bluetooth coverage
  • Budget-friendly

2. SensorPush HT1 Wireless Thermometer/Hygrometer for iPhone and Android Devices

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Technical Aspects:

  • Battery Powered
  • Requires 1 CR2 battery
  • Bluetooth range 325 feet
  • Accuracy ±0.5°F and ±3%RH
  • Temperature -40°F to -140°F
  • Humidity: 0 to 100%

SensorPush is a humidity and temperature measuring smart sensor. It works with your iPhone through the associated app available on the website.

You’ll need 1 CR2 battery to operate this device since it’s DC-powered.

Thanks to the high-tech engineering that made it so precise. It’s assembled with high-quality components that ensure greater accuracy. Alongside temperature and humidity, the device helps to track VPD and dew point temp in the room.

We like the compact and durable body construction perfect for a versatile range of applications. Be it in a room, greenhouse, baby nursery, plant growing tent, or incubator, this device works like a charm!

Not to forget that you may also place it inside a freezer, refrigerator, or incubator. Because of its highly versatile usage, it’s quite popular and one of the best room temperature measuring thermometer hygrometers for iPhones.

You can connect it to the phone via Bluetooth. However, to get more exciting features like push notifications for preset temperature range crossing, you’ll have to get an additional SensorPush G1 WiFi Gateway.

The Gateway is connected through your home’s Wi-Fi. You can associate Alexa or use the web-based interface to get updated weather condition reports. That’s how remote weather-condition monitoring has become easier today!

Highlighted Features:

  • Wireless and easy to use
  • Has both iOS & Android apps
  • Greater data accuracy
  • Highly versatile kit
  • Wide Bluetooth range

3. ThermoPro Bluetooth Hygrometer Thermometer

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Technical Aspects:

  • DC power source
  • Requires 2 AAA batteries
  • Measures maximum 140 °F
  • Response time 60 seconds
  • Wireless control 260ft
  • 3.5 inch backlit LCD

Like the Govee Bluetooth thermometer, ThermoPro is another amazing digital display wireless temp and humidity monitor. It can be a great alternative to sensors because of its own display that makes it useful as a standalone device.

But for the most part, it integrates with a multifunctional smart weather monitoring software. It’s very easy to use and connects to your iPhone via Bluetooth.

We like the LCD 3.5-inch large screen. It’s sharp and bright making it easy to read under low and bright day lightings. Even better, the screen doesn’t strain your eyes because of the soft yellow backlight.

The Sensirin sensor produces very accurate results. Temperature and humidity accuracy can only fluctuate more or less 0.5°F and 2%RH respectively.

You will be informed even about a small change in your room’s temperature. Like other high-quality devices, it’s built with a powerful Bluetooth chip. You can stay connected through your iPhone within 260ft anywhere in the house.

No need to walk physically each time to read the temperature when it’s connected to your phone. Just tap on the software and you can have real-time data instantly!

In addition, data storage is really helpful for those wanted to generate weather condition reports throughout the year. It shows a historic graph with trends by year. For those owning a greenhouse, cellar, or hatching room, this Hygrometer is a lifesaver!

It’ll send push notifications when your preset temperature range is exceeded.

Highlighted Features:

  • Large and easy to read screen
  • Increases your productivity
  • 260 feet Bluetooth coverage
  • Easily integrates with iPhone
  • Well-made and long lasting

4. SwitchBot Smart Bluetooth Wireless Room Temperature and Humidity Sensor Device

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Technical Aspects:

  • Battery Powered, 1.5 Volts
  • 4 seconds refresh
  • Wi-Fi support 2.4GHz
  • Area coverage 394ft unobstructed
  • Max. measurement 176 °F

SwitchBot smart sensor is also wireless and battery-powered. It runs over 1.5 volts from the source. The construction is so durable and compact. One may mount it on a flat surface or hang it on the wall with the help of its magnetic back.

It also has an advanced temp sensor that continuously monitors your room temperature with 4 seconds response time. One of the most useful features is that this smart sensor has its own LED display. It is nice and bright subsequently shows large digits in higher resolution. Overall, screen readability is made to be quite equal for everybody!

You can easily integrate this sensor device with your iPhone through the provided SwitchBot app. It connects over 2.4GHz Wi-Fi. We guess it might not support a 5GHz connection. Moving on, the meter itself can hold the records of the past 36 days.

However, the cloud space is unlimited which requires a SwitchBot hub to be connected. The hub isn’t provided along and needs to be brought separately. We’re especially thrilled by the long Bluetooth area coverage.

You’ll be notified about any unusual temperature changes to your iPhone within 394ft. Best of all, it works with your humidifier and air conditioner. Set a specific number to trigger them at a certain level. This is really helpful to stay aware of baby rooms.

Finally, the long battery life is what we’re obsessed with!

Highlighted Features:

  • Long battery life
  • Automated features
  • Smart iPhone temperature sensor
  • Wide Bluetooth coverage
  • LED display

5. ONVIS Smart Motion Sensor Wireless PIR Detector

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Technical Aspects:

  • DC power source
  • 2xAAA alkaline batteries
  • Updates every 5 minutes
  • Bluetooth 5.0 connectivity
  • 7 meters motion detection

Lastly, we have another great smart device for room temperature and humidity measurement. Because of all of its highly useful features, it’s something more than just a thermometer or hygrometer.

It also has a high-tech motion sensor that captures any movements and sends notifications. As an extension of security, this device is truly amazing for monitoring your kids or elderly people living at home.

The home automation feature is really awesome. It can be integrated with Apple Homekit, iPhone, and iPad through Bluetooth. Note that the iOS requirement is 10.1 or later versions. You’ll get access to all advanced features to have better control over your room’s weather conditions. Consequently, secure the life of your loved ones.

If you already have a Siri voice controller, it’s easy to integrate!

In addition, it’s a battery-powered device meaning there’s no need for an electric outlet to turn it on. Just insert 1 Lithium Polymer battery and you’re ready to go! The low energy consumption technology helps to run over 15000 hours at once.

You’d love to know that the battery level is shown on the screen.

So you can track when is the time to replace a new one and never miss a single track. The device can activate the recorder trigger automatically. It updates in 5 minutes plus the data storage capacity is 31 days.

Highlighted Features:

  • Low energy consumption
  • Motion detection feature
  • Smart voice control
  • Easy installation
  • Useful home automation


1. Can my phone tell the room temperature?

Not exactly but it can tell the room temperature once connected to an external thermometer through an associated app.

2. Can a smartphone be used as a thermometer?

Straight to the question, it’s not possible to use a smartphone as a thermometer. Even if the phone’s sensor is used by some of the mobile apps, it’s not accurate.

3. Is there a free thermometer app for iPhone?

Yes, you can find many free thermometer apps for iPhones. We’ve already listed some of them above in this article. However, to have more advanced features like data diagrams or reports, you’ll have to switch to paid versions.

Final Words

Overall, this is how to check room temperature with iPhone. Again, there’s no alternative to an external device. Only a software application can’t really replace a thermometer which is made for that purpose.

You may already read that an app can tell you the outside weather conditions by connecting to a nearby forecasting station. So now the choice is yours…!

In the end, we believe that all our above-mentioned techniques will help to get real-time data about a room’s weather condition and live a healthy and smart life!

Up Next: Humidistat and hygrometer – Are they same same?

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