# Ara Authentic vs Thermal Viewer

The clearest difference is in-app purchases: Ara Authentic at none against Thermal Viewer's 3. Thermal Viewer's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads, device support 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. Ara Authentic asks for nothing beyond the download.

Ara Authentic ships an update every 3 weeks, Thermal Viewer every 6 days. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Ara Authentic | 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 3 weeks | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 85 MB | 35 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | +4 |
| Developer | [Maik Arink](https://appshunter.io/developer/1699272203) | [Rush Tools LLC](https://appshunter.io/developer/1896773547) |

## What reviewers say

### Ara Authentic

[App page](https://appshunter.io/ios/app/ara-authentic-ir/id6740208604)

**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 Ara Authentic free?

Ara Authentic 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 Ara Authentic or Thermal Viewer have ads?

Neither Ara Authentic nor Thermal Viewer shows ads.

### Which is updated more often, Ara Authentic or Thermal Viewer?

Ara Authentic ships an update every 3 weeks, and Thermal Viewer every 6 days. Most recently, Ara Authentic was updated on October 11, 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.*