Create two iOS Apps in Xcode

Question

Using Xcode (to develop on iOS) I want to create a second project that it is the same as a first project but some classes are differents.

Exactly, I\'m creating an I

Answer 1

I want to offer a free version and a premium version.

In this case, you do not need to create two apps in two projects: all you need is a second target for your premium version. Here is a link that explains how to create and manage multiple targets in Xcode.

The process boils down to adding a target to the project, defining a separate properties plist for it, optionally setting up a preprocessor symbol for conditional compile, and using that symbol to #ifdef portions of your classes not needed in the free version.

Another common approach to managing free vs. premium offering is to provide a single version for free, and let users upgrade it to premium through an in-app purchase.