# Thermal Pro vs KT

The clearest difference is update cadence: KT at monthly against Thermal Pro's every 4 months. 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.

Thermal Pro ships an update every 4 months, KT monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Thermal Pro | KT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/thermal-pro/id6736890047/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free | — |
| Size | 28 MB | 3 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [Globalsat Technology Corporation.](https://appshunter.io/developer/624997558) |

## What reviewers say

### Thermal Pro

[App page](https://appshunter.io/ios/app/thermal-pro/id6736890047)

This portable thermal imager converts object heat radiation into images and temperature data. It offers high-resolution thermal imaging, real-time temperature measurement, and various display modes. Users can record videos, set alarms, and generate detailed analysis reports.

**Highlights:** 256x192 pixel infrared resolution, Real-time high-definition thermal imaging, Temperature range -20℃ to 550℃, Thermal imaging, fusion, and picture-in-picture modes, Real-time temperature sound/light alarms, Temperature measurement analysis reports, Video recording and playback

**Features:** macOS Compatibility

**In-app purchases:** none


### KT

[App page](https://appshunter.io/ios/app/kt-520-c/id6743460437)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thermal Pro free?

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

### Is KT free?

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

### Do Thermal Pro or KT have ads?

Neither Thermal Pro nor KT shows ads.

### Which is updated more often, Thermal Pro or KT?

Thermal Pro ships an update every 4 months, and KT monthly. Most recently, Thermal Pro was updated on October 24, 2026 and KT 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.*