# O2 Car Control vs REX Centrum bezpečí

The clearest difference is iOS requirement: REX Centrum bezpečí at 11.0 against O2 Car Control's 17.6. 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.

O2 Car Control ships an update every 4 months, REX Centrum bezpečí every 3 months. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | O2 Car Control | REX Centrum bezpečí |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 47 MB | 19 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [O2 Czech Republic a.s.](https://appshunter.io/developer/311143795) | [1. REX SERVICES, a.s.](https://appshunter.io/developer/1084232045) |

## What reviewers say

### O2 Car Control

[App page](https://appshunter.io/ios/app/o2-car-control/id512635003)

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is O2 Car Control free?

O2 Car Control is free to download, with no in-app purchases.

### Is REX Centrum bezpečí free?

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

### Do O2 Car Control or REX Centrum bezpečí have ads?

Neither O2 Car Control nor REX Centrum bezpečí shows ads.

### Which is updated more often, O2 Car Control or REX Centrum bezpečí?

O2 Car Control ships an update every 4 months, and REX Centrum bezpečí every 3 months. Most recently, O2 Car Control was updated on October 19, 2026 and REX Centrum bezpečí 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.*