# Fluke iSee vs Thermal Master

The clearest difference is rating: Thermal Master at 2.7 against Fluke iSee's 1.8. Thermal Master also leads on update cadence (every 3 weeks vs every 4 months) and review sentiment (31% vs 8%). Fluke iSee's advantage is iOS requirement (11.0 vs 13.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Thermal Master holds the better App Store score, 2.7 against 1.8. Both are backed by a comparable volume of ratings — 23 and 19 respectively. Written reviews point the same way: 8% of Fluke iSee's written reviews are positive against 31% of Thermal Master's.

Fluke iSee ships an update every 4 months, Thermal Master every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fluke iSee | Thermal Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (23 ratings)](https://appshunter.io/ios/app/fluke-isee/id6448859058/reviews) | **[2.7 (19 ratings)](https://appshunter.io/ios/app/thermal-master/id6737389515/reviews)** |
| Number of ratings | **23** | 19 |
| Positive reviews | 8.3% of reviews | **30.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 58 MB | 191 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [福禄克测试仪器(上海)有限公司](https://appshunter.io/developer/1651601381) | [Thermal Master Technology Co.,Ltd.](https://appshunter.io/developer/1770222118) |

## What reviewers say

### Fluke iSee

[App page](https://appshunter.io/ios/app/fluke-isee/id6448859058)

This application connects to a thermal camera accessory to measure temperature and perform thermal imaging detection on your smart device. It's useful for inspections, field observations, and even educational purposes, revealing the hidden world of temperature.

**Highlights:** Real-time temperature measurement, Thermal imaging detection, Connects via Lightning interface, Portable and on-the-go use, Suitable for inspections and education

**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 Fluke iSee free?

Fluke iSee 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, Fluke iSee or Thermal Master?

Thermal Master is rated higher. Fluke iSee averages 1.8 out of 5 from 23 ratings, while Thermal Master averages 2.7 from 19 ratings.

### Do Fluke iSee or Thermal Master have ads?

Neither Fluke iSee nor Thermal Master shows ads.

### Which is updated more often, Fluke iSee or Thermal Master?

Fluke iSee ships an update every 4 months, and Thermal Master every 3 weeks. Most recently, Fluke iSee was updated on October 24, 2026 and Thermal Master on October 25, 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.*