The main focus of Dashboard 2.0 is rightly, developing dashboards, however I am intrigued to see if it is possible to develop a mobile app using Node-RED and the Dashboard 2.0 nodes.
I have shared my efforts in the Shared Project section of the forum (see link below) and I am interested is other people's views and feedback.
Many Thanks Tim
An Example of a Mobile App Written Using Node-RED and Dashboard 2.0