MasterDance is an app used internally by several European dance federations with the purpose of providing judge panels with an easy way to give ratings to the contestants during various phases of the competition. The app, loaded onto Android tablets, was designed to be simple to comprehend and was highly optimized for near-instantaneous communication with the central server. After providing a somewhat basic-looking, function-first design, a modern, new UI was developed for the next iteration of the app.