# Thermal Link vs Thermal Pro

Thermal Link and Thermal Pro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Thermal Link ships an update every 3 months, Thermal Pro every 4 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Thermal Link | Thermal Pro |
| --- | --- | --- |
| 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 3 months** | Every 4 months |
| Monetization | — | Free |
| Size | 58 MB | 28 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UNI-TREND TECHNOLOGY (CHINA) CO.,LTD.](https://appshunter.io/developer/1207185875) | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) |

## What reviewers say

### Thermal Link

[App page](https://appshunter.io/ios/app/thermal-link/id1588000207)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Thermal Link free?

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

### Is Thermal Pro free?

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

### Do Thermal Link or Thermal Pro have ads?

Neither Thermal Link nor Thermal Pro shows ads.

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

Thermal Link ships an update every 3 months, and Thermal Pro every 4 months. Most recently, Thermal Link was updated on October 27, 2026 and Thermal Pro on October 24, 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.*