# TAS Viewer vs Thermal Master

The clearest difference is review sentiment: TAS Viewer at 100% against Thermal Master's 31%. Thermal Master's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

TAS Viewer ships an update every 2 months, Thermal Master every 3 weeks. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TAS Viewer | Thermal Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.7 (19 ratings)](https://appshunter.io/ios/app/thermal-master/id6737389515/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | **100.0% of reviews** | 30.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 32 MB | 191 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [红杰 李](https://appshunter.io/developer/1602186097) | [Thermal Master Technology Co.,Ltd.](https://appshunter.io/developer/1770222118) |

## What reviewers say

### 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


### Thermal Master

[App page](https://appshunter.io/ios/app/thermal-master/id6737389515)

This utility app connects to specific thermal camera models, offering enhanced thermal imaging capabilities. It features an upgraded algorithm for clearer heat source detection and supports digital zoom for precise target identification. The app provides lifetime free software upgrades.

**Highlights:** Connects to P, X, DV, and T2Max series thermal cameras, Upgraded Insight+ algorithm for noise suppression, Enhanced heat source visibility, Up to 15x digital zoom, Lifetime free software upgrades

**In-app purchases:** none


## Frequently asked questions

### Is TAS Viewer free?

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

### Is Thermal Master free?

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

### Do TAS Viewer or Thermal Master have ads?

Neither TAS Viewer nor Thermal Master shows ads.

### Which is updated more often, TAS Viewer or Thermal Master?

TAS Viewer ships an update every 2 months, and Thermal Master every 3 weeks. Most recently, TAS Viewer was updated on October 19, 2026 and Thermal Master on October 24, 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.*