Quasar Play is a free Android application developed by Razvan Stoenescu under the category of Utilities & Tools. The app allows developers to test their Quasar Apps directly on their phone with hot reload. It also provides a showcase of Quasar Framework components, giving developers a glimpse of what the framework can do.

To start the development server on your machine, simply enter the command "quasar dev --play". Make sure that your dev server and phone are on the same network, then scan the QR code provided by the app to connect your phone to the development server.

Overall, Quasar Play is a useful tool for developers who want to test their Quasar Apps on their phones and showcase the framework's capabilities. However, it's worth noting that the app is using a very old version of the Quasar Framework, which may limit its usefulness for developers using newer versions.