The FLIR ONE app together with the FLIR ONE and FLIR ONE Pro device turns your iPhone into a thermal camera.

The FLIR One and FLIR ONE Pro can help home buyers and home owners save money. Enhanced resolution through VividIR™ allows home professionals to identify problems quickly and show they’ve fixed the problem the first time. Outdoor enthusiasts and gadget geeks can see the world in a whole new way or dig into their favorite technology. FLIR ONE can get you started and the FLIR ONE Pro will take you to the next level.

Its advanced image processing includes FLIR MSX®, which blends the image detail from the color camera with the thermal image to give you the best of both worlds. The revolutionary OneFit™ adjustable-height connector ensures that your FLIR ONE and FLIR ONE Pro will fit your phone or tablet, even when it’s in a compatible protective case. An improved FLIR ONE app lets you stream thermal images to your smartwatch for remote viewing and share images and videos with social media while keeping you up to date on the latest FLIR ONE tips and tricks. Explore the neighborhood, solve problems around the house, and see the world from a new perspective with the new and improved FLIR ONE and FLIR ONE Pro.

Connect with the FLIR ONE at,,, and

For more information on the FLIR One, visit

What’s New

Version 3.2.5

- Fix for Production

Ratings and Reviews

2.4 out of 5
128 Ratings

128 Ratings

Alpesh P ,

FIXED: Communication error

Per developer recommendation, update to iOS 11.2.5 resolved communication error. MSX alignment and temperature readings seem to be good. Thank you! Horizontal bands persist until manual calibration.

Gen 1 on 6S. I’ve had the gen 1 since release. Used to be a great tool but app/updates have handicapped the flir one. Latest app version 3.1.11 still has not fixed “communication error”. Temp readings inaccurate. MSX alignment off. Horizontal bands in image until manual calibration. It has been 1 month since last app update. Please fix!

Developer Response ,

Please ensure that you are running iOS 11.2.5 as it addresses the performance/communication issues you have been experiencing. In addition, ensure that your FLIR ONE firmware is fully up to date. For additional support please contact

HeLookLikeAhMe ,

Bricked my Gen 1 Flir One Camera

Well it pains me to write this, I originally bought the gen 1 for my iPhone 5 and had no problems to this day with the hardware. As for the software that’s a different story After Flir updated the app requiring user accounts and constant internet connection my camera has not worked right ever since. The last few updates my phone gives me the constant error stating “this phone model is not supported” sometimes my phone would recognize the camera unit sometimes not. I eventually tried tethering my gen 1 to my newer iPhone 6 using a lighting cable extender with the same results regardless of which phone I used. Now with the latest update my gen 1 no longer works at all. With my old 5 giving all kinds of error messages it wasn’t giving out before. Flir used to be the best in the market for thermal cams and the Flir One was major step in thermal innovation but is now a $250 dollar plastic paper wight. No logical reason to stop supporting legacy devices unless it to force consumers into buying new units every other year which I’m sorry I won’t do. This is more of a disappointment then a rant, solid product that was abandoned before its time.....

Susapix ,

So far so good

I have the third generation Flir One, just the regular one, not the Pro. I connected it to both my iPhone and my iPad with no problem. I am on OS12 for both devices.

I updated the firmware of the FLir One first thing. I do not allow location services and I have never created an account or (of course) logged in. App doesn’t seem to mind and works as advertised.

Angle of view is small and resolution is not great, though I would say the images taken with the iPad are perhaps better than those taken with the iPhone so maybe it’s not the fault of the device. But in either case the images are perfectly readable and very informative. Looks to be a useful tool. I will update this review if warranted. I bought this device for a specific project and I am just learning how to use it.


FLIR Systems INC
75.7 MB
Photo & Video

Requires iOS 10.3 or later. Compatible with iPhone, iPad, and iPod touch.


English, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish

Age Rating
Rated 4+
© FLIR Systems, Inc


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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