# CRD ONE vs DEAuser

The clearest difference is update cadence: DEAuser at every 2 months against CRD ONE's every 9 months. CRD ONE'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.

CRD ONE ships an update every 9 months, DEAuser every 2 months. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CRD ONE | DEAuser |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 8 MB | 22 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [CARDIN ELETTRONICA S.p.A.](https://appshunter.io/developer/965252906) | [DEASYSTEM SPA](https://appshunter.io/developer/1157501693) |

## What reviewers say

### CRD ONE

[App page](https://appshunter.io/ios/app/crd-one/id965252907)

Control and monitor your Cardin security and automation systems remotely. Activate receiver outputs, check input statuses, and send commands to PRO and TRADE ECUs. Monitor command and security devices for PRO ECUs.

**Highlights:** Activate 3G/WF receiver outputs, Monitor input status (open/closed), Send commands to PRO and TRADE ECUs, Monitor command and security devices (PRO ECUs)

**Features:** macOS Compatibility

**In-app purchases:** none


### DEAuser

[App page](https://appshunter.io/ios/app/deauser/id6741229419)

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

**In-app purchases:** none


## Frequently asked questions

### Is CRD ONE free?

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

### Is DEAuser free?

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

### Do CRD ONE or DEAuser have ads?

Neither CRD ONE nor DEAuser shows ads.

### Which is updated more often, CRD ONE or DEAuser?

CRD ONE ships an update every 9 months, and DEAuser every 2 months. Most recently, CRD ONE was updated on October 6, 2026 and DEAuser on October 8, 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.*