# CRD ONE vs Sikuro

The clearest difference is iOS requirement: CRD ONE at 11.0 against Sikuro's 13.0. 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.

CRD ONE ships an update every 9 months, Sikuro every 5 months. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | CRD ONE | Sikuro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 8 MB | 64 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [CARDIN ELETTRONICA S.p.A.](https://appshunter.io/developer/965252906) | [Eutech Electronics srl](https://appshunter.io/developer/1454358193) |

## 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


### Sikuro

[App page](https://appshunter.io/ios/app/sikuro/id1466745272)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CRD ONE free?

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

### Is Sikuro free?

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

### Do CRD ONE or Sikuro have ads?

Neither CRD ONE nor Sikuro shows ads.

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

CRD ONE ships an update every 9 months, and Sikuro every 5 months. Most recently, CRD ONE was updated on September 23, 2026 and Sikuro on September 14, 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.*