Comparison

Flir One vs Thermal Vision FX Camera

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Flir One

This app transforms your smartphone into a thermal imaging device when connected to a compatible camera. It helps identify hidden issues like water damage, electrical faults, and HVAC problems with advanced visual enhancements and measurement tools. Document and share your findings easily.

Highlights
  • Thermal camera view
  • Capture photos and videos
  • Temperature spot measurements
  • Color palette selection
  • Add text notes
  • Cloud upload and organization
  • Inspection guides
Features
Read full description

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/

About

Thermal Vision FX Camera

Apply real-time thermal-style heat vision filters to your camera feed. Enhance your photos and videos with unique visual effects. Supports standard iOS screen recording for video capture.

Highlights
  • Real-time thermal vision filters
  • Live heat imaging effects
  • Video recording via iOS screen recording
  • Photo and video enhancement
Features
Read full description

This is a camera app with thermal-style heat vision filters in real-time. To record video, please use the standard iOS screen recording function. https://support.apple.com/HT207935

Screenshots

Flir One4 screens
Thermal Vision FX Camera2 screens

Verdict

The call

The clearest difference is in-app purchases: Thermal Vision FX Camera at none against Flir One's 1. Thermal Vision FX Camera also leads on iOS requirement (15.6 vs 18.0). Flir One's advantage is ads (none vs shown) and rating (4.6 vs 4.4). On price, review sentiment, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flir One sells 1 in-app purchase, starting at $29.99 per year. Thermal Vision FX Camera asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Flir One holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Flir One has 7.6K ratings behind it against 797, so its average is the more settled of the two. Written reviews split almost evenly too, at 22% and 21% positive.

UpkeepUpdate frequency

Flir One ships an update every 5 weeks, Thermal Vision FX Camera every 3 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
Flir One versus Thermal Vision FX Camera: the parameters behind the verdict, then further details
ParameterFlir OneThermal Vision FX Camera
PriceFreeFree
Rating4.6 (7.6K ratings) — better4.4 (797 ratings)
Positive reviews21.6% of reviews — better21.1% of reviews
Number of ratings7.6K — better797
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.6 — better
Further details — not scored
Size178 MB9 MB
Age rating4+4+
DeveloperFLIR Systems AktiebolagMasaharu Tsukamoto

Customer experience

Flir One

All ratings7,615 ratings
Positive90.3%
Neutral3.0%
Negative6.7%
Written reviews375 reviews
Positive21.6%
Neutral6.9%
Negative71.5%

Thermal Vision FX Camera

All ratings793 ratings
Positive83.1%
Neutral4.9%
Negative12.0%
Written reviews38 reviews
Positive21.1%
Neutral0.0%
Negative78.9%

User reviews

Flir One

From 7.6K App Store ratings

What we love

  • 🚀 Great for finding animals
  • 🚀 Excellent affordable option for home inspection
  • 🚀 Valued piece of tech for animal rescue
  • 🚀 Excellent piece of equipment
  • 🚀 Simple but informative

Room to improve

  • 🐛 Image alignment issues
  • 🐛 Scam - won't connect
  • 🐛 Poor App/Image refresh
  • 🐛 Waste of money
  • 🐛 Poor UX, only real option

Thermal Vision FX Camera

From 797 App Store ratings

What we love

  • ⭐ Great app
  • 💫 Magic
  • 🔍 Detected heat signatures

Room to improve

  • 🚫 Does not work
  • 💤 Only shows light, not heat
  • 📺 Too many ads
  • 🔍 Not a real thermal camera
  • 🤔 Doesn't work in the dark

Bugs and requests

Flir One

Reported bugs

7 issues
  • Constantly disconnecting
  • App crashes
  • Doesn't work with older devices after updates
  • Slow refresh rate and high latency
  • App requires full photo library access
Show 2 more
  • Freezes and paralyzes phone
  • Crashes on startup

Requested features

6 requests
  • 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
Show 1 more
  • Improve camera alignment adjustability

Thermal Vision FX Camera

Reported bugs

3 issues
  • Crashes
  • Freezes
  • Incompatible with some devices

Requested features

2 requests
  • Exit full screen mode
  • Night vision mode

In-app purchases

1 purchases

Flir One

Subscriptions1
  • Inspection Guides1 Year trial$29.991 Year
None

Thermal Vision FX Camera

No in-app purchases

Questions

Is Flir One free?
Flir One is free to download, with in-app purchases available.
Is Thermal Vision FX Camera free?
Thermal Vision FX Camera is free to download, with no in-app purchases.
Which has better reviews, Flir One or Thermal Vision FX Camera?
Flir One is rated higher. Flir One averages 4.6 out of 5 from 7.6K ratings, while Thermal Vision FX Camera averages 4.4 from 797 ratings.
Do Flir One or Thermal Vision FX Camera have ads?
Thermal Vision FX Camera shows ads; Flir One does not.
Which is updated more often, Flir One or Thermal Vision FX Camera?
Flir One ships an update every 5 weeks, and Thermal Vision FX Camera every 3 weeks. Most recently, Flir One was updated on November 1, 2026 and Thermal Vision FX Camera on October 30, 2026.

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