# Flir One — Thermal Camera for Smartphones

> Smartphone thermal camera app for inspection and troubleshooting. (iPhone/iPad app by FLIR Systems Aktiebolag.)

- Source: https://appshunter.io/ios/app/flir-one/id875842742 (this page in markdown: same URL + `.md`)
- Developer: [FLIR Systems Aktiebolag](https://appshunter.io/developer/408612990)
- Category: Photo & Video
- Price: Free with in-app purchases
- Rating: 4.60/5 from 7,569 App Store ratings · 369 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 177 MB
- Languages: French (France), German (Germany), American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Korean, Danish, European Spanish, Finnish, Greek and 11 more
- Released: 2014-08-04
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/flir-one/id875842742/reviews.md

## What is Flir One?

Connect your FLIR ONE® series Thermal Camera for efficient troubleshooting and inspection.

Note: This app requires the FLIR ONE series Thermal Camera connected to your smartphone in order to see the thermal camera view, but feel free to explore the app without the device attached. For more information, visit www.flir.com/flirone.

Whether you need to inspect electrical panels, find the source of HVAC failures, or discover hidden water damage, the FLIR ONE series offers the features you need to find problems faster and get more work done in less time. With advanced image enhancement features such as FLIR MSX® and FLIR VividIR™, the FLIR ONE series provides best-in-class thermal imagery for smartphones that ensures you can detect problems with precision.

The revolutionary rugged and ergonomic camera design combined with the wireless connection of the FLIR ONE Edge series ensures that you can perform efficient troubleshooting with the camera attached to the phone, and have the increased flexibility of detaching the camera to easily inspect targets out of reach, while comfortably viewing your screen.

Key FLIR ONE App features:

•	Scan for faults with the thermal camera view and capture photos and videos to your gallery
•	Troubleshoot efficiently with automatic tracking of the hottest and coldest spot (Edge Series and Pro Series only)
•	Choose between a variety of color palettes for best visualization
•	Analyze faults with temperature spot measurements
•	Adjust the IR scale to highlight the problem (Edge and Pro Series only)
•	Switch between Quality Mode for best possible image quality, or Performance Mode for a more responsive camera experience
•	Add text notes to photos to document your findings
•	Connecting to FLIR Ignite™ allows you to instantly upload your files to the cloud, so you can access them from any device, organize files into folders, edit images, create reports and share findings with co-workers and clients
•	FLIR ONE Inspection Guides (paid feature) empowers you to identify issues with confidence, through step-by-step guides packed with helpful tips on how to identify moisture, insulation and air leak issues
•	Explore the eco-system of a wide range of FLIR ONE compatible apps tailored for specific use cases

For additional application ideas and news, or to share your day-to-day discoveries, follow FLIR on social media channels at facebook.com/flir, instagram.com/flir, x.com/flir, and youtube.com/flir.

Terms of use: https://www.flir.com/corporate/terms-of-use/

## Key features

- Thermal camera view
- Capture photos and videos
- Temperature spot measurements
- Color palette selection
- Add text notes
- Cloud upload and organization
- Inspection guides

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Inspection Guides | $29.99 | per year |


## What do users think of Flir One?

Overall sentiment: neutral

**Pros**

- 🚀 Great for finding animals
- 🚀 Excellent affordable option for home inspection
- 🚀 Valued piece of tech for animal rescue
- 🚀 Excellent piece of equipment
- 🚀 Simple but informative
- 🚀 Works great as advertised & very user friendly
- 🚀 Awesome system saves time and money

**Cons**

- 🐛 Image alignment issues
- 🐛 Scam - won't connect
- 🐛 Poor App/Image refresh
- 🐛 Waste of money
- 🐛 Poor UX, only real option
- 🔋 Poor battery life
- 🔒 Privacy issue
- 🔒 Requires full access to photos
- 🔒 Watermark advertising

**Commonly reported bugs**

- Constantly disconnecting
- App crashes
- Doesn't work with older devices after updates
- Slow refresh rate and high latency
- App requires full photo library access
- Freezes and paralyzes phone
- Crashes on startup

**Most requested features**

- Bring back swiping between thermal and regular images
- Allow locking temperature scale
- Add temperature range display
- Allow setting own emissivity value
- Allow selecting colors on manual temperature scale
- Improve camera alignment adjustability

## Recent user reviews (10 of 369)

All indexed reviews: https://appshunter.io/ios/app/flir-one/id875842742/reviews.md

### 1/5 — Doesn’t work on iPhone

*2026-08-11, version 6.4.12*

Tried to connect Flir to my phone but failing, no proper documentation that can help me figuring out. It couldn’t detect the camera. Works fine with another phone (Pixel).

### 1/5 — App does not work on iphone 17 pro max.

*2026-07-26, version 6.4.12*

I plugged in my flir one after fully charging it, held the power button and then waited for it to start flashing green, and it just sat on the stupid screen telling me how to connect. Tried fully uninstalling and reinstalling the app and the same problem. The camera worked fine on my android, so I can only assume it's ios being garbage. Putting 1 star for now, if an update is put out fixing it I'll give a 5 star which is what it would be if it connected.

### 1/5 — Funktioniert nicht

*2026-07-06*

iPhone 15pro, also usb c. Sollte eigentlich funktionieren. Ich stecke das Gerät an, App ist geöffnet und befolge die Anleitung, so wie sie angezeigt wird auf dem Handy. Die LED leuchtet grün, aber in der app springt es nicht auf die thermalsicht um und bleibt die ganze Zeit bei der Anleitung hängen. Bei einem Kollegen mit Android funktionierts problemlos (gleiches Gerät).

**Developer response:** Hallo, vielen Dank für Ihr Feedback. Um Ihnen weiterhelfen zu können, benötigen wir weitere Informationen. Bitte rufen Sie uns unter der Nummer (+1) 805 392 3775 (Option 1) an und/oder melden Sie das Problem unter http://flir.custhelp.com/app/ask mit Angabe des Geräts, des Betriebssystems und der Kamerainformationen. Wir melden uns dann umgehend bei Ihnen.

### 1/5 — Useless as you need more than your phone

*2026-05-31, version 6.4.11*

Installed it less than 2 minutes as you have to buy other equipment and connect to your phones Bluetooth to get it to work

### 1/5 — It is not working ob iphone 16 plus

*2026-05-27, version 6.4.11*

It’s not working

### 1/5 — Hi next time

*2026-05-23, version 6.4.11*

On the front page have the attachment showing cause that would be conviniet

### 2/5 — Connection

*2026-04-13, version 6.4.9*

Keeps dripping out

### 1/5 — BAD app no fence

*2026-04-07, version 6.4.9*

I downloaded this app to search for ghastly looking creatures/rats  the result I got was nothing it didn’t work and I literally spent 15 mins trying to get it to work when I could have been looking at a different app that works don’t recommend

### 1/5 — Hard nope

*2026-02-20, version 6.4.7*

Never got to try the app. was going to purchase a FLIR one for personal  use after using a flir at work. , wanted to explore the too and pricing. never got todo it because of terms and conditions that had to be accepted. completely unacceptable in its scope. Well beyond what i am comfortable agreeing to.

### 1/5 — Bad customer service

*2026-02-16, version 6.4.6*

The worst customer service ever, I spent over $400 on the camera, sent many emailed to customer service and received no answer, tried to call and that didn’t work. Don’t invest with this crabby company

## Frequently asked questions about Flir One

### What does the FLIR ONE app do?

The FLIR ONE app works with a connected FLIR ONE series thermal camera to turn your smartphone into a thermal imager. It allows you to see heat signatures, capture thermal photos and videos, and analyze temperature data to identify problems like water leaks, electrical issues, or HVAC inefficiencies.

### What are the key features of the FLIR ONE app?

Key features include a live thermal camera view, the ability to capture and save photos/videos, temperature spot measurements, adjustable color palettes, and the option to add text notes. Advanced models offer automatic hot/cold spot tracking and IR scale adjustment. The app also supports cloud uploads for easy sharing and organization.

### Is the FLIR ONE app free to use?

The app itself is free to download and explore. However, to utilize the full thermal imaging capabilities, you need to connect a compatible FLIR ONE series thermal camera. Some advanced features, such as the FLIR ONE Inspection Guides, are available as paid in-app purchases.

### What devices is the FLIR ONE app compatible with?

The app is designed to connect with FLIR ONE series thermal cameras, which then attach to your smartphone. You can explore the app's features without the camera attached, but the thermal imaging functionality requires the physical camera accessory. Specific compatibility details for the camera models can be found on the FLIR website.

### What are common use cases for the FLIR ONE app?

Common use cases include inspecting electrical panels for overheating components, diagnosing HVAC system failures, finding hidden water damage or insulation gaps in homes, and performing general building inspections. It's also useful for automotive diagnostics and identifying energy loss around windows and doors.

## Version history (last 5 releases)

### 6.4.12 — 2026-06-22

Bug fixes and improvements

### 6.4.11 — 2026-04-23

Bug fixes and improvements

### 6.4.10 — 2026-04-15

Bug fixes and improvements

### 6.4.9 — 2026-03-25

Bug fixes and improvements

### 6.4.8 — 2026-03-13

Bug fixes and improvements

## Apps similar to Flir One

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Thermal Vision FX Camera :iTVC](https://appshunter.io/ios/app/thermal-vision-fx-camera-itvc/id6444025764) | 4.4 (793) | Free | Photo & Video |
| [Night Vision & Thermal Camera](https://appshunter.io/ios/app/night-vision-and-thermal-camera/id1605814625) | 4.3 (33) | $1.99 | Photo & Video |
| [Night Vision - LiDAR Camera](https://appshunter.io/ios/app/night-vision-lidar-camera/id1668629667) | 4.1 (505) | Free | Photo & Video |
| [Night Vision FX Camera :iNVG](https://appshunter.io/ios/app/night-vision-fx-camera-invg/id1607541050) | 4.3 (889) | Free | Photo & Video |
| [Nightcam Camera: Night Mode](https://appshunter.io/ios/app/nightcam-camera-night-mode/id1485217423) | 4.1 (2,523) | Free | Photo & Video |

## More apps by FLIR Systems Aktiebolag

- [FLIR Tools](https://appshunter.io/ios/app/flir-tools/id511247887)
- [Flir Responder](https://appshunter.io/ios/app/flir-responder/id6737113709)

All apps by FLIR Systems Aktiebolag: https://appshunter.io/developer/408612990

## Related topics

[thermal camera](https://appshunter.io/ios/topics/thermal-camera) · [thermal](https://appshunter.io/ios/topics/thermal) · [heat camera](https://appshunter.io/ios/topics/heat-camera) · [infrared camera](https://appshunter.io/ios/topics/infrared-camera) · [infrared](https://appshunter.io/ios/topics/infrared) · [thermo camera](https://appshunter.io/ios/topics/thermo-camera) · [thermal heat camera](https://appshunter.io/ios/topics/thermal-heat-camera) · [thermal temperature](https://appshunter.io/ios/topics/thermal-temperature) · [thermal editor](https://appshunter.io/ios/topics/thermal-editor) · [temperature camera](https://appshunter.io/ios/topics/temperature-camera) · [heat sensor](https://appshunter.io/ios/topics/heat-sensor) · [heat thermometer](https://appshunter.io/ios/topics/heat-thermometer) · [thermal imaging camera](https://appshunter.io/ios/topics/thermal-imaging-camera) · [thermal imaging](https://appshunter.io/ios/topics/thermal-imaging) · [heat sensor camera](https://appshunter.io/ios/topics/heat-sensor-camera) · [see through walls](https://appshunter.io/ios/topics/see-through-walls) · [thermal imaging photo](https://appshunter.io/ios/topics/thermal-imaging-photo) · [camara termica](https://appshunter.io/ios/topics/camara-termica) · [flir one](https://appshunter.io/ios/topics/flir-one) · [flir one pro](https://appshunter.io/ios/topics/flir-one-pro)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*