you guys should get this app and join my chatroom. The room I'm creating is called "Music room #3" and I'll keep it open everyday. The doesn't notify for messages but as long as I keep the app tab open, I stay in the chatroom I joined or the one I created stays open.
Also, the chatrooms are set up just the dollars website from the anime. All you do is choose a name for your username and then pick a chatroom (hopefully you'll pick mine ^-^).
(p.s. the last three pictures aren't from the app, I just figured I would share them too lol)