# HTProCamera vs TAS Viewer

The clearest difference is update cadence: TAS Viewer at every 2 months against HTProCamera's every 27 months. HTProCamera's advantage is iOS requirement (8.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HTProCamera ships an update every 27 months, TAS Viewer every 2 months. The most recent releases landed on September 23, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | HTProCamera | TAS Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 31 MB | 32 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [HT Italia srl](https://appshunter.io/developer/781570829) | [红杰 李](https://appshunter.io/developer/1602186097) |

## What reviewers say

### HTProCamera

[App page](https://appshunter.io/ios/app/htprocamera/id1304389650)

**Features:** macOS Compatibility

**In-app purchases:** none


### TAS Viewer

[App page](https://appshunter.io/ios/app/tas-viewer/id1605567151)

This application provides tools for the secondary analysis of infrared imaging data. It allows users to examine and interpret thermal images for various purposes.

**Highlights:** Infrared imaging secondary analysis, Thermal image interpretation, Data examination tools

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HTProCamera free?

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

### Is TAS Viewer free?

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

### Do HTProCamera or TAS Viewer have ads?

Neither HTProCamera nor TAS Viewer shows ads.

### Which is updated more often, HTProCamera or TAS Viewer?

HTProCamera ships an update every 27 months, and TAS Viewer every 2 months. Most recently, HTProCamera was updated on September 23, 2026 and TAS Viewer on June 11, 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.*