# Flir One vs Obseron

The clearest difference is in-app purchases: Obseron at none against Flir One's 1. Obseron also leads on iOS requirement (12.4 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

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

Flir One ships an update every 5 weeks, Obseron every 2 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Flir One | Obseron |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7.6K ratings)](https://appshunter.io/ios/app/flir-one/id875842742/reviews)** | — |
| Number of ratings | **7.6K** | — |
| Positive reviews | 21.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 178 MB | 7 MB |
| Requires iOS | 18.0 | **12.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FLIR Systems Aktiebolag](https://appshunter.io/developer/408612990) | [Valvova Oy, turvaratkaisut](https://appshunter.io/developer/949428709) |

## What reviewers say

### Flir One

[App page](https://appshunter.io/ios/app/flir-one/id875842742)

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:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inspection Guides | $29.99 | per year |

**What reviewers like**

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

**What reviewers complain about**

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

**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

**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


### Obseron

[App page](https://appshunter.io/ios/app/obseron/id1533044338)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flir One free?

Flir One is free to download, with in-app purchases available.

### Is Obseron free?

Obseron is free to download, with no in-app purchases.

### Do Flir One or Obseron have ads?

Neither Flir One nor Obseron shows ads.

### Which is updated more often, Flir One or Obseron?

Flir One ships an update every 5 weeks, and Obseron every 2 months. Most recently, Flir One was updated on November 1, 2026 and Obseron on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*