 <p>I would recommend that you look into breaking this down into parts. For example, do you have the login working on the web portion (rails)? If so then you can begin to try to get it to work on the iOS side. Next I would recommend you look into POST and GET requests as a basic way of talking to a back end. Once you have gotten simple apps to work with that then you might have a better idea of the path that lies ahead.</p>