# IR master vs Thermal Master

The clearest difference is rating: IR master at 3.7 against Thermal Master's 2.3. Thermal Master's advantage is update cadence (every 3 weeks vs every 3 months) and review sentiment (36% vs 27%). 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.

IR master holds the better App Store score, 3.7 against 2.3. Both are backed by a comparable volume of ratings — 3 and 14 respectively. Written reviews complicate that: 27% of IR master's written reviews are positive against 36% of Thermal Master's, so the app with the better star average is not the one people write more warmly about.

IR master ships an update every 3 months, Thermal Master every 3 weeks. The most recent releases landed on July 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | IR master | Thermal Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ir-master/id1614218116/reviews)** | [2.3 (14 ratings)](https://appshunter.io/ios/app/thermal-master/id6737389515/reviews) |
| Number of ratings | 3 | **14** |
| Positive reviews | 26.7% of reviews | **36.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 77 MB | 126 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [InfiRay Technologies Co.,Ltd.](https://appshunter.io/developer/1516230719) | [Thermal Master Technology Co.,Ltd.](https://appshunter.io/developer/1770222118) |

## What reviewers say

### IR master

[App page](https://appshunter.io/ios/app/ir-master/id1614218116)

This application transforms your smartphone into a high-resolution infrared thermal imager. It offers detailed temperature data output for various applications, from industrial inspections to personal health monitoring.

**Highlights:** High-resolution infrared thermal imaging, Real-time temperature data output, Wide range of application directions, Consumer-level infrared thermography, Night vision capabilities

**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 IR master free?

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

### Is Thermal Master free?

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

### Which has better reviews, IR master or Thermal Master?

IR master is rated higher. IR master averages 3.7 out of 5 from 3 ratings, while Thermal Master averages 2.3 from 14 ratings.

### Do IR master or Thermal Master have ads?

Neither IR master nor Thermal Master shows ads.

### Which is updated more often, IR master or Thermal Master?

IR master ships an update every 3 months, and Thermal Master every 3 weeks. Most recently, IR master was updated on July 7, 2026 and Thermal Master on September 9, 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.*