Now thats a more advanced chatting application,Unlike chatbuzz (https://github.com/ahmedattia213/ChatBuzz), Here you have a chatlog for each user instead of only a chatroom for all users, you can also register with pictures, send messages, send pictures, send videos. and alot more exciting features which will make this app fully equipped.
all you have to do to use it is to create your own firebase realtime database (firebase4) attach your own googleservice-info.plist and pod install and everything will be good.