The app controls digital model railroad layouts by driving locomotives, set switches, set signal, and let run trains automatically.
This app is a mobile client for the model railroad program Rocrail. See https://wiki.rocrail.net for more information on Rocrail.

The app offers dialogs for blocks, turntables, traversers, staging and fiddleyards; All you need to control your model railroad layout with a mobile device.
A special dialog is the throttle for controlling locomotives speed and functions.

The app has 3 main tabs: One for the layout, one for driving and one for the system controls and tracing.

In order to control a model railroad layout the app must be connected to a Rocrail server. If one is found on the local network, mDNS/Bonjour, it will automatically connect to it.

The Rocrail Demo server can be connected if no local server has been found. This option is available in the Settings menu, the gear symbol right on top, if no local server has been found.