Multi-person chatroom do not use the internet.All devices must install this program, all users can send a message to others by WiFi . Which is suitable to be used in the quiet places , such as classrooms , MRTs , buses , and libraries.
From the cellphone in the center of building chatroom to others receiving WiFi.
When the user of building chatroom chooses to quit, all users joining will be forced to quit chatroom.
-No surfing the Net
-Individual color of dialog box