As you may know, side navigation drawers (slide-in menu, side menu) are not implemented by Apple in their standard user interface library for iOS (as opposed to Google’s Android), nevertheless they are becoming more and more important. So naturally at some point you are going to find yourself in a situation where a navigation drawer for an iPhone App is a necessary step.
Of course you as an iOS app developer can always look online for some tutorials on how to implement yourself, which basically shouldn’t be a big problem, but you should ask yourself how much of your time would you like to invest in order to make the layout to work exactly how you planned in the first place.
If that is the case, here is a good tutorial to get you started:
http://www.youtube.com/watch?v=mdG6XpwwuwI
For of you who are looking for a faster, more elegant solution here are two cool options:
RESideMenu
iOS 7 style side menu with parallax effect inspired by Dribbble shots. It works both with and without storyboard.