SIMATIC WinCC OA UI vs TwinCAT IoT Communicator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SIMATIC WinCC OA UI
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.
- Remote plant monitoring
- Real-time control
- Multiple system connections
- Secure data transmission
- Intuitive mobile interface
Read full descriptionHide full description
Stay in control of your SIMATIC WinCC OA plant - anytime, anywhere - with the WinCC OA UI App on your smartphone or tablet. Whether you're in the office, on the move, or on-site, you can monitor and intervene in real time. The app provides the same powerful functionality as the familiar desktop user interface - secure, reliable, and optimized for mobile use. Key Benefits at a Glance: - Flexible Remote Access: Monitor and control your plant from anywhere. - Multiple System Connections: Easily switch between different WinCC OA systems. - Secure Data Transmission: Connect via HTTP or HTTPS with optional SSL encryption. - Intuitive Operation: A familiar interface designed for mobile devices. Note: By downloading this app, you agree to the associated license agreements.
TwinCAT IoT Communicator
Easily transmit process data from TwinCAT controllers to various devices, monitor status changes, and send information back to machines. This tool connects your controller to a messaging service for seamless communication between PLC and mobile operating systems.
- Transmit process data
- Monitor status changes
- Send information back to machine
- Connect TwinCAT controller to messaging service
- Publish-subscribe pattern integration
- Easy IT network integration
Read full descriptionHide full description
The TwinCAT 3 IoT Communicator ("TF6730") makes it possible to easily transmit process data to multiple end devices, monitor status changes and send information back to the machine. The TwinCAT 3 IoT Communicator connects the TwinCAT controller to a messaging service, making it easy to set it up within the TwinCAT engineering environment to send and receive messages between the PLC and mobile operating systems. Since the TwinCAT 3 IoT Communicator is based on the publish-subscribe pattern, it does not require any special firewall settings but can be easily integrated into an existing IT network. More information: http://www.beckhoff.com/TF6730 http://www.beckhoff.com/TF6735
Screenshots
Verdict
SIMATIC WinCC OA UI and TwinCAT IoT Communicator are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 5.0 for TwinCAT IoT Communicator. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.
| Parameter | SIMATIC WinCC OA UI | TwinCAT IoT Communicator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 70 MB | 116 MB |
| Age rating | 4+ | 4+ |
| Developer | Siemens AG | Beckhoff Automation GmbH |
Customer experience
SIMATIC WinCC OA UI
TwinCAT IoT Communicator
In-app purchases
SIMATIC WinCC OA UI
No in-app purchases
TwinCAT IoT Communicator
No in-app purchases
Questions
Is SIMATIC WinCC OA UI free?
Is TwinCAT IoT Communicator free?
Which has better reviews, SIMATIC WinCC OA UI or TwinCAT IoT Communicator?
Do SIMATIC WinCC OA UI or TwinCAT IoT Communicator have ads?
Which is updated more often, SIMATIC WinCC OA UI or TwinCAT IoT Communicator?
Other comparisons
