(deprecated). Please use https://github.com/socketio/socket.io-client-swift . Node.js socket.io with iOS. It's using https://github.com/pkyeck/socket.IO-objc
Socket.io with objective-c example.
##For running the app
Change IP address at sockio-server/views/index.html
var socket = io.connect("192.168.1.10:3000");
Run socket.io chat like
node ./sockio-server/app.js
Change IP address at Objective-C code
[_socketIO connectToHost:@"localhost" onPort:3000];