# QTRIX Viewer vs ThermalSight

The clearest difference is update cadence: ThermalSight at every 2 months against QTRIX Viewer's every 6 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.

QTRIX Viewer ships an update every 6 months, ThermalSight every 2 months. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | QTRIX Viewer | ThermalSight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 2 MB | 36 MB |
| Requires iOS | 15.2 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Calidat GmbH](https://appshunter.io/developer/1477624591) | [Shenzhen Everbest Machinery Industry Co.,Ltd](https://appshunter.io/developer/564470332) |

## What reviewers say

### QTRIX Viewer

[App page](https://appshunter.io/ios/app/qtrix-viewer/id1606374309)

**Features:** macOS Compatibility

**In-app purchases:** none


### ThermalSight

[App page](https://appshunter.io/ios/app/thermalsight/id6473887919)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QTRIX Viewer free?

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

### Is ThermalSight free?

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

### Do QTRIX Viewer or ThermalSight have ads?

Neither QTRIX Viewer nor ThermalSight shows ads.

### Which is updated more often, QTRIX Viewer or ThermalSight?

QTRIX Viewer ships an update every 6 months, and ThermalSight every 2 months. Most recently, QTRIX Viewer was updated on October 13, 2026 and ThermalSight on October 12, 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.*