# SIMATIC WinCC OA UI vs PLC Simulator 2, Ladder Logic

The clearest difference is update cadence: PLC Simulator 2, Ladder Logic at every 6 days against SIMATIC WinCC OA UI's every 2 months. PLC Simulator 2, Ladder Logic also leads on ratings volume (121 vs 2). SIMATIC WinCC OA UI's advantage is review sentiment (100% vs 84%). On price, rating, 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.

On the App Store both sit at effectively the same score — 5.0 for SIMATIC WinCC OA UI against 4.9 for PLC Simulator 2, Ladder Logic. That said, the two scores are not equally well evidenced: PLC Simulator 2, Ladder Logic has 121 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 100% of SIMATIC WinCC OA UI's written reviews are positive against 84% of PLC Simulator 2, Ladder Logic's.

SIMATIC WinCC OA UI ships an update every 2 months, PLC Simulator 2, Ladder Logic every 6 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SIMATIC WinCC OA UI | PLC Simulator 2, Ladder Logic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/simatic-wincc-oa-ui/id1073943068/reviews)** | [4.9 (121 ratings)](https://appshunter.io/ios/app/plc-simulator-2-ladder-logic/id1672572436/reviews) |
| Number of ratings | 2 | **121** |
| Positive reviews | **100.0% of reviews** | 84.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 70 MB | 29 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [David White](https://appshunter.io/developer/911163945) |

## 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


### PLC Simulator 2, Ladder Logic

[App page](https://appshunter.io/ios/app/plc-simulator-2-ladder-logic/id1672572436)

This application enables students and professionals to test and explore basic PLC programming using ladder logic on their mobile devices. It supports various instructions, configurable rungs, and includes interactive animations for a hands-on learning experience. Save and modify up to 20 programs, with preloaded examples to aid understanding.

**Highlights:** Configurable rungs, Input/Output descriptions, Ladder logic simulation, Save up to 20 programs, Interactive animations, Preloaded example programs

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

**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 PLC Simulator 2, Ladder Logic free?

PLC Simulator 2, Ladder Logic is free to download, with no in-app purchases.

### Which has better reviews, SIMATIC WinCC OA UI or PLC Simulator 2, Ladder Logic?

SIMATIC WinCC OA UI is rated higher. SIMATIC WinCC OA UI averages 5.0 out of 5 from 2 ratings, while PLC Simulator 2, Ladder Logic averages 4.9 from 121 ratings.

### Do SIMATIC WinCC OA UI or PLC Simulator 2, Ladder Logic have ads?

Neither SIMATIC WinCC OA UI nor PLC Simulator 2, Ladder Logic shows ads.

### Which is updated more often, SIMATIC WinCC OA UI or PLC Simulator 2, Ladder Logic?

SIMATIC WinCC OA UI ships an update every 2 months, and PLC Simulator 2, Ladder Logic every 6 days. Most recently, SIMATIC WinCC OA UI was updated on November 6, 2026 and PLC Simulator 2, Ladder Logic on November 3, 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.*