# SIMATIC WinCC OA UI vs Roonmatrix

The clearest difference is update cadence: Roonmatrix at every 2 weeks against SIMATIC WinCC OA UI's every 2 months. Roonmatrix also leads on iOS requirement (12.0 vs 14.0). 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.

SIMATIC WinCC OA UI ships an update every 2 months, Roonmatrix every 2 weeks. The most recent releases landed on September 1, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | SIMATIC WinCC OA UI | Roonmatrix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/simatic-wincc-oa-ui/id1073943068/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 70 MB | 34 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [Stephan Wilhelm](https://appshunter.io/developer/1763046216) |

## What reviewers say

### SIMATIC WinCC OA UI

[App page](https://appshunter.io/ios/app/simatic-wincc-oa-ui/id1073943068)

Monitor and control your SIMATIC WinCC OA plant remotely from your smartphone or tablet. Access the same powerful functionality as the desktop interface, ensuring secure and reliable real-time operation from anywhere.

**Highlights:** Remote plant monitoring, Real-time control, Multiple system connections, Secure data transmission, Intuitive mobile interface

**In-app purchases:** none


### Roonmatrix

[App page](https://appshunter.io/ios/app/roonmatrix/id6636547766)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SIMATIC WinCC OA UI free?

SIMATIC WinCC OA UI is free to download, with no in-app purchases.

### Is Roonmatrix free?

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

### Do SIMATIC WinCC OA UI or Roonmatrix have ads?

Neither SIMATIC WinCC OA UI nor Roonmatrix shows ads.

### Which is updated more often, SIMATIC WinCC OA UI or Roonmatrix?

SIMATIC WinCC OA UI ships an update every 2 months, and Roonmatrix every 2 weeks. Most recently, SIMATIC WinCC OA UI was updated on September 1, 2026 and Roonmatrix 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.*