To help you decide which thermal imaging app is best for you, we’ve reviewed the best thermal imaging apps currently available.
As industry leader Process Parameters explains, there are several different types of thermal imaging apps, including a smartphone app that uses your mobile device’s camera to take a thermal image, an app that uses a camera on a tablet or smartphone to take a thermal image, and a cloud-based app that comes with a subscription service.
In this post, we’ll tell you which kind of app is right for you, how it works, and which features are worth paying for.
FLIR One Thermal Imaging Camera
The FLIR One Thermal Imaging Camera has been around for quite some time now. It’s one of the best examples of a thermal imaging camera that has been integrated into an app. You simply clip the device over the front of your smartphone and use it as you would any other application. This allows you to take thermal images wherever you are, whenever you want to.
The FLIR One is not a smartphone application per se, but it is one of the best thermal imaging apps that you can use. We recommend the FLIR One if you want a dedicated camera to use with a smartphone. It’s an excellent product that gives you the best of both worlds, but there’s no denying it’s a little pricey.
Smartphone Thermal Scanner
Developed by Dr. M. Wael El-Assi and Dr. Ahmed Mohamed, the Smartphone Thermal Scanner is a free app that turns your smartphone into a thermal camera. Simply place your device down on a surface and click the start button to begin. It can detect temperatures from -22 °C to 482 °C, and it has a high-temperature accuracy of ±10 °C.
You can use this app to find out if your house is insulated properly, spot water leaks, detect hot and cold spots in your car, and so much more. And best of all, it’s completely free!
FLIR Thermal Scan
If you’re looking for a comprehensive thermal imaging app, then the FLIR Thermal Scan app might be the best option. This one is designed to be used with all your devices. Whether it’s an iPhone, iPad, Android, or even a laptop, this app will run on it.
Using the thermal camera of your choice, the FLIR Thermal Scan app can be used to find structural issues, measure temperatures, find out if your food is cooked, and much more. It works with any thermal camera and is free to download.
Darkroom
Darkroom is a thermal imaging app that comes with a host of features, but it also comes with a price tag. If you’re okay with spending $9.99 on an app, then you’re in for a treat. The Darkroom app is made by FLIR, the same company behind the FLIR One.
It comes with quite a few features, including the ability to take thermal images, temperature readings, display measurements in Celsius and Fahrenheit, and much more. It also comes with an augmented reality feature, so you can see what the thermal camera sees in real time. Darkroom is available for both Android and iOS.
Nexar CoPilot
The Nexar CoPilot thermal imaging app is designed for police officers, law enforcement officers, and first responders. This app is a great example of how thermal imaging can help in a situation where a person might lose their vision.
The Nexar CoPilot app can be used to detect hot spots, find people in need, measure distances, and much more. It comes with an easy to use interface, and it can be used with all the devices that you have. The Nexar CoPilot app comes with a 30-day money-back guarantee in case you’re not satisfied with the product.
So what is the best free thermal imaging app?
We’ve come to the end of our list of the 5 best thermal imaging apps. Each of these apps can be used for a variety of different tasks, including detecting sources of heat and finding potential safety hazards.
They are great for people in many different industries, including industrial maintenance and inspections, firefighting and rescue operations, HVAC/R, energy production and distribution, security and surveillance, wildlife research, medical and health care applications, archaeology, food processing, and other scientific disciplines. If you’re looking to bring thermal imaging into your workflow, you can find the best thermal imaging app for you by reading through this list.
- Why London’s Luxury Rental Market Is the Natural Choice for the Modern Executive on the Move - May 17, 2026
- Leading Through Digital Transformation with Microsoft Dynamics 365 Support Services for Agile Organizations - March 22, 2026
- Kai Wong: How Agile Leadership Principles Drive Success in Ultra-Luxury Real Estate - February 28, 2026
