That’s right, Bonjour is only for dynamically discovering other services on the LAN. However, in the case you describe you need to take care that your app is not shut down when it is backgrounded. I’m not terribly familiar with Android development, but I think this means creating a “service” instead of a regular app. That stuff should be more or less ready (Unity has a way of destroying everything I create mercilessly) but as for Bonjour things have broken again with the Unity version I am on so I am dealing with that.