# TopInfrared vs Thermal Master

The clearest difference is rating: TopInfrared at 3.5 against Thermal Master's 2.5. TopInfrared also leads on ratings volume (51 vs 15). Thermal Master's advantage is in-app purchases (none vs 1). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. TopInfrared sells 1 one-off in-app purchase. Thermal Master asks for nothing beyond the download.

TopInfrared holds the better App Store score, 3.5 against 2.5. Both are backed by a comparable volume of ratings — 51 and 15 respectively. Written reviews point the same way: 40% of TopInfrared's written reviews are positive against 36% of Thermal Master's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | TopInfrared | Thermal Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (51 ratings)](https://appshunter.io/ios/app/topinfrared/id6452017744/reviews)** | [2.5 (15 ratings)](https://appshunter.io/ios/app/thermal-master/id6737389515/reviews) |
| Number of ratings | **51** | 15 |
| Positive reviews | **39.7% of reviews** | 36.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 518 MB | 190 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) | [Thermal Master Technology Co.,Ltd.](https://appshunter.io/developer/1770222118) |

## What reviewers say

### TopInfrared

[App page](https://appshunter.io/ios/app/topinfrared/id6452017744)

This thermal imaging camera app provides high-resolution thermal images for precise temperature detection. It's ideal for inspecting insulation, examining electronics, and identifying heat loss with excellent accuracy and sensitivity.

**Highlights:** High-resolution thermal imaging (256x192), Precise temperature detection, Insulation inspection, Circuit board examination, High heat sensitivity (40mk), Low power consumption

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Features | $19.99 | one-time |


### 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 TopInfrared free?

TopInfrared is free to download, with in-app purchases available.

### Is Thermal Master free?

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

### Which has better reviews, TopInfrared or Thermal Master?

TopInfrared is rated higher. TopInfrared averages 3.5 out of 5 from 51 ratings, while Thermal Master averages 2.5 from 15 ratings.

### Do TopInfrared or Thermal Master have ads?

Neither TopInfrared nor Thermal Master shows ads.

### Which is updated more often, TopInfrared or Thermal Master?

TopInfrared ships an update every 3 weeks, and Thermal Master every 3 weeks. Most recently, TopInfrared was updated on October 20, 2026 and Thermal Master on October 12, 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.*