# HTI Thermal Camera vs Thermal Viewer

The clearest difference is in-app purchases: HTI Thermal Camera at none against Thermal Viewer's 3. Thermal Viewer's advantage is update cadence (every 6 days vs every 5 months) and device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

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

HTI Thermal Camera ships an update every 5 months, Thermal Viewer every 6 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | HTI Thermal Camera | 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 | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 25 MB | 35 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Software Shop](https://appshunter.io/developer/1288503758) | [Rush Tools LLC](https://appshunter.io/developer/1896773547) |

## What reviewers say

### HTI Thermal Camera

[App page](https://appshunter.io/ios/app/hti-thermal-camera/id6757632170)

**Features:** macOS Compatibility

**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 HTI Thermal Camera free?

HTI Thermal Camera 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 HTI Thermal Camera or Thermal Viewer have ads?

Neither HTI Thermal Camera nor Thermal Viewer shows ads.

### Which is updated more often, HTI Thermal Camera or Thermal Viewer?

HTI Thermal Camera ships an update every 5 months, and Thermal Viewer every 6 days. Most recently, HTI Thermal Camera was updated on October 25, 2026 and Thermal Viewer on October 28, 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.*