# QTRIX Viewer vs SENCOR DVR

The clearest difference is iOS requirement: SENCOR DVR at 11.0 against QTRIX Viewer's 15.2. On price, update cadence, ads and in-app purchases 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, SENCOR DVR every 12 months. The most recent releases landed on September 27, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | QTRIX Viewer | SENCOR DVR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 12 months |
| Size | 2 MB | 26 MB |
| Requires iOS | 15.2 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Calidat GmbH](https://appshunter.io/developer/1477624591) | [SHENZHEN APICAL TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1413016734) |

## What reviewers say

### QTRIX Viewer

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

**Features:** macOS Compatibility

**In-app purchases:** none


### SENCOR DVR

[App page](https://appshunter.io/ios/app/sencor-dvr/id6504391379)

**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 SENCOR DVR free?

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

### Do QTRIX Viewer or SENCOR DVR have ads?

Neither QTRIX Viewer nor SENCOR DVR shows ads.

### Which is updated more often, QTRIX Viewer or SENCOR DVR?

QTRIX Viewer ships an update every 6 months, and SENCOR DVR every 12 months. Most recently, QTRIX Viewer was updated on September 27, 2026 and SENCOR DVR on September 15, 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.*