# Fluke iSee vs TopInfrared

The clearest difference is rating: TopInfrared at 3.5 against Fluke iSee's 2.3. TopInfrared also leads on review sentiment (40% vs 8%) and update cadence (every 3 weeks vs every 4 months). Fluke iSee's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

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

TopInfrared holds the better App Store score, 3.5 against 2.3. That said, the two scores are not equally well evidenced: TopInfrared has 48 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 8% of Fluke iSee's written reviews are positive against 40% of TopInfrared's.

Fluke iSee ships an update every 4 months, TopInfrared every 3 weeks. The most recent releases landed on September 8, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Fluke iSee | TopInfrared |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (9 ratings)](https://appshunter.io/ios/app/fluke-isee/id6448859058/reviews) | **[3.5 (48 ratings)](https://appshunter.io/ios/app/topinfrared/id6452017744/reviews)** |
| Number of ratings | 9 | **48** |
| Positive reviews | 8.3% of reviews | **39.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 58 MB | 518 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [福禄克测试仪器(上海)有限公司](https://appshunter.io/developer/1651601381) | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) |

## 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


### 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 |


## Frequently asked questions

### Is Fluke iSee free?

Fluke iSee is free to download, with no in-app purchases.

### Is TopInfrared free?

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

### Which has better reviews, Fluke iSee or TopInfrared?

TopInfrared is rated higher. Fluke iSee averages 2.3 out of 5 from 9 ratings, while TopInfrared averages 3.5 from 48 ratings.

### Do Fluke iSee or TopInfrared have ads?

Neither Fluke iSee nor TopInfrared shows ads.

### Which is updated more often, Fluke iSee or TopInfrared?

Fluke iSee ships an update every 4 months, and TopInfrared every 3 weeks. Most recently, Fluke iSee was updated on September 8, 2026 and TopInfrared on September 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*