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iOS Build a Simple iPhone App (iOS7) Getting Started Get Familiar with Xcode

App Creation Screen

When I make a single view app on Xcode, it has different stuff to fill out. It has me fill out the Product Name, Organization name, and identifier, but it does not ask me for the prefix. Also, at the bottom of the their is a box I can check to enable something called Core Data. Should I Click it, or leave it empty?

Go and look on iOS creating iOS7 crystal ball app, he will tell u in the beginning what do do with all these stuff , how to start a project.