# TAS Viewer vs Thermal P2

The clearest difference is review sentiment: TAS Viewer at 100% against Thermal P2's 11%. TAS Viewer also leads on monetization model (free vs paid). Thermal P2's advantage is update cadence (fortnightly vs every 2 months) and iOS requirement (11.0 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.

TAS Viewer ships an update every 2 months, Thermal P2 fortnightly. The most recent releases landed on September 15, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | TAS Viewer | Thermal P2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.1 (27 ratings)](https://appshunter.io/ios/app/thermal-p2/id6446384113/reviews)** |
| Number of ratings | — | **27** |
| Positive reviews | **100.0% of reviews** | 10.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Paid |
| Size | 32 MB | 19 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [红杰 李](https://appshunter.io/developer/1602186097) | [Raysen Microsystem Technology Co., Ltd.](https://appshunter.io/developer/1738384120) |

## 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 P2

[App page](https://appshunter.io/ios/app/thermal-p2/id6446384113)

This professional thermal camera connects to your smartphone for plug-and-play temperature measurement. It's ideal for both personal and industrial use, from inspecting household utilities to diagnosing equipment issues.

**Highlights:** Ultra-small professional thermal camera, 12μm high-performance infrared detector, Self-developed ASIC chip, Compact size, lightweight, low power consumption, Plug-and-play smartphone connection, Accurate temperature measurement, Heat map analysis

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TAS Viewer free?

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

### Is Thermal P2 free?

Thermal P2 is free to download, with no in-app purchases.

### Do TAS Viewer or Thermal P2 have ads?

Neither TAS Viewer nor Thermal P2 shows ads.

### Which is updated more often, TAS Viewer or Thermal P2?

TAS Viewer ships an update every 2 months, and Thermal P2 fortnightly. Most recently, TAS Viewer was updated on September 15, 2026 and Thermal P2 on September 29, 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.*