# Thermal Link vs Thermal Imager

The clearest difference is update cadence: Thermal Link at every 3 months against Thermal Imager's every 30 months. Thermal Link also leads on iOS requirement (11.0 vs 15.6). 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 Link ships an update every 3 months, Thermal Imager every 30 months. The most recent releases landed on October 27, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Thermal Link | Thermal Imager |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 30 months |
| Size | 58 MB | 53 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UNI-TREND TECHNOLOGY (CHINA) CO.,LTD.](https://appshunter.io/developer/1207185875) | [Smart iMeters](https://appshunter.io/developer/6775329697) |

## What reviewers say

### Thermal Link

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Thermal Imager

[App page](https://appshunter.io/ios/app/thermal-imager/id6502282920)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Thermal Link free?

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

### Is Thermal Imager free?

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

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

Neither Thermal Link nor Thermal Imager shows ads.

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

Thermal Link ships an update every 3 months, and Thermal Imager every 30 months. Most recently, Thermal Link was updated on October 27, 2026 and Thermal Imager on November 8, 2026.

---

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