SIMATIC WinCC OA UI is an Android app that enables remote access to SIMATIC WinCC OA facility using a mobile device. This application is developed by Siemens AG and is available for free. The app uses HTTP or HTTPS for connection, which can also be SSL secured. However, it is important to note that only the ARM version of Android is supported.

The app allows creating and changing multiple connections to different SIMATIC WinCC OA facilities. It offers the same functionality as a remote user interface of WinCC OA. The app is available in English, German, or Russian languages. By downloading the app, users agree to the displayed license agreements.