# SIMATIC WinCC OA UI vs oncaire

The clearest difference is update cadence: oncaire at monthly against SIMATIC WinCC OA UI's every 2 months. 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, oncaire monthly. The most recent releases landed on September 1, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | SIMATIC WinCC OA UI | oncaire |
| --- | --- | --- |
| 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 | **Monthly** |
| Monetization | Free | — |
| Size | 70 MB | 30 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [MASSIMO BROTTO](https://appshunter.io/developer/1746355264) |

## 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


### oncaire

[App page](https://appshunter.io/ios/app/oncaire/id6502665471)

**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 oncaire free?

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

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

Neither SIMATIC WinCC OA UI nor oncaire shows ads.

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

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