# SIMATIC WinCC OA UI vs SICK Smart Assistant

The clearest difference is update cadence: SIMATIC WinCC OA UI at every 2 months against SICK Smart Assistant's every 6 months. SICK Smart Assistant's advantage is iOS requirement (13.0 vs 15.0). 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, SICK Smart Assistant every 6 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SIMATIC WinCC OA UI | SICK Smart Assistant |
| --- | --- | --- |
| 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 6 months |
| Monetization | Free | — |
| Size | 70 MB | 214 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [SICK AG](https://appshunter.io/developer/988403777) |

## 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


### SICK Smart Assistant

[App page](https://appshunter.io/ios/app/sick-smart-assistant/id1524423177)

**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 SICK Smart Assistant free?

SICK Smart Assistant is free to download, with no in-app purchases.

### Do SIMATIC WinCC OA UI or SICK Smart Assistant have ads?

Neither SIMATIC WinCC OA UI nor SICK Smart Assistant shows ads.

### Which is updated more often, SIMATIC WinCC OA UI or SICK Smart Assistant?

SIMATIC WinCC OA UI ships an update every 2 months, and SICK Smart Assistant every 6 months. Most recently, SIMATIC WinCC OA UI was updated on October 24, 2026 and SICK Smart Assistant 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.*