# S7 Link vs SIMATIC WinCC OA UI

The clearest difference is price: SIMATIC WinCC OA UI at Free against S7 Link's $14.99. SIMATIC WinCC OA UI also leads on in-app purchases (none vs 3) and iOS requirement (15.0 vs 26.0). On update cadence, ads and device support there is nothing between them.

SIMATIC WinCC OA UI is free to download; S7 Link costs $14.99 up front. S7 Link sells 3 one-off in-app purchases. SIMATIC WinCC OA UI asks for nothing beyond the download.

S7 Link ships an update every 4 months, SIMATIC WinCC OA UI every 2 months. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | S7 Link | SIMATIC WinCC OA UI |
| --- | --- | --- |
| Price | $14.99 | **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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 10 MB | 70 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Carlo Trotti](https://appshunter.io/developer/594070838) | [Siemens AG](https://appshunter.io/developer/394503271) |

## What reviewers say

### S7 Link

[App page](https://appshunter.io/ios/app/s7-link/id594070835)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Alarms | $2.99 | one-time |
| Charts | $2.99 | one-time |
| OPC Client | $4.99 | one-time |


### 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


## Frequently asked questions

### Is S7 Link free?

S7 Link costs $14.99, and also offers in-app purchases.

### Is SIMATIC WinCC OA UI free?

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

### Do S7 Link or SIMATIC WinCC OA UI have ads?

Neither S7 Link nor SIMATIC WinCC OA UI shows ads.

### Which is updated more often, S7 Link or SIMATIC WinCC OA UI?

S7 Link ships an update every 4 months, and SIMATIC WinCC OA UI every 2 months. Most recently, S7 Link was updated on November 10, 2026 and SIMATIC WinCC OA UI on November 6, 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.*