# REX Centrum bezpečí vs DuchcOFF

The clearest difference is update cadence: DuchcOFF at every 2 weeks against REX Centrum bezpečí's every 3 months. REX Centrum bezpečí's advantage is iOS requirement (11.0 vs 15.1). 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.

REX Centrum bezpečí ships an update every 3 months, DuchcOFF every 2 weeks. Both last shipped on October 7, 2026.

## The numbers

| Metric | REX Centrum bezpečí | DuchcOFF |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 19 MB | 13 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [1. REX SERVICES, a.s.](https://appshunter.io/developer/1084232045) | [Josef Benes](https://appshunter.io/developer/1413998076) |

## What reviewers say

### REX Centrum bezpečí

[App page](https://appshunter.io/ios/app/rex-centrum-bezpeci/id1530005571)

Manage all your REX devices from a single mobile application. Control security systems, track vehicles and pets, and view event history. Sign in with your REX account to access all features.

**Highlights:** Arm and disarm controls, Map view, Logbook and event history, Device and contact settings, Billing and payment, Support for various REX devices

**Features:** macOS Compatibility

**In-app purchases:** none


### DuchcOFF

[App page](https://appshunter.io/ios/app/duchcoff/id6758988625)

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

**In-app purchases:** none


## Frequently asked questions

### Is REX Centrum bezpečí free?

REX Centrum bezpečí is free to download, with no in-app purchases.

### Is DuchcOFF free?

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

### Do REX Centrum bezpečí or DuchcOFF have ads?

Neither REX Centrum bezpečí nor DuchcOFF shows ads.

### Which is updated more often, REX Centrum bezpečí or DuchcOFF?

REX Centrum bezpečí ships an update every 3 months, and DuchcOFF every 2 weeks. Most recently, REX Centrum bezpečí was updated on October 7, 2026 and DuchcOFF on October 7, 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.*