# Scanner3D vs Thermal Viewer

The clearest difference is in-app purchases: Scanner3D at none against Thermal Viewer's 3. Thermal Viewer's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 17.5). On price, update cadence and ads there is nothing between them.

Both are free to download. Thermal Viewer sells 3 in-app purchases, starting at $4.99 per 7 days. Scanner3D asks for nothing beyond the download.

Scanner3D ships an update every 2 weeks, Thermal Viewer every 6 days. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Scanner3D | Thermal Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/thermal-viewer-ir-analyzer/id6779991634/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 2 MB | 35 MB |
| Requires iOS | 17.5 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | +4 |
| Developer | [Danqing Zhang](https://appshunter.io/developer/1888815834) | [Rush Tools LLC](https://appshunter.io/developer/1896773547) |

## What reviewers say

### Scanner3D

[App page](https://appshunter.io/ios/app/scanner3d-pathon-robotics/id6762235906)

**In-app purchases:** none


### Thermal Viewer

[App page](https://appshunter.io/ios/app/thermal-viewer-ir-analyzer/id6779991634)

Analyze radiometric thermal images directly on your iPhone, iPad, or Mac. This app supports various thermal image formats and offers detailed temperature analysis, including spot, box, and ellipse measurements. It allows for live re-analysis and export of data and settings, all while keeping your images private and offline.

**Highlights:** Analyze radiometric thermal images, Supports multiple thermal file formats, Tap to read exact temperature, Add spot, box, ellipse, and line measurements, Live re-analysis with adjustable parameters, Visible-light blend and MSX-style overlay, Export temperature matrix to CSV, Batch export of images and settings

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Yearly | $29.99 | per year |
| Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is Scanner3D free?

Scanner3D is free to download, with no in-app purchases.

### Is Thermal Viewer free?

Thermal Viewer is free to download, with in-app purchases available.

### Do Scanner3D or Thermal Viewer have ads?

Neither Scanner3D nor Thermal Viewer shows ads.

### Which is updated more often, Scanner3D or Thermal Viewer?

Scanner3D ships an update every 2 weeks, and Thermal Viewer every 6 days. Most recently, Scanner3D was updated on October 10, 2026 and Thermal Viewer on October 18, 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.*