What could I possibly do after finishing building into Xcode

Questions & Answers
1

I am not familiar at all with the Xcode. I don’t know what I can possibly do with my scripts, my project after building into Xcode.

Where’s my codes in Xcode? Are they simply packed/built that I cannot see them at all in Xcode?

I noticed there’re files called [myprojectname].app in the xcode project. What are they? Are they my codes? What could I do with them?

If there’s no way modifying my game in Xcode, how can I do an In-App Purchase? It seems that I couldn’t do it in Unity?

Thank you very much.

2

You should not have to look at Xcode at all, unity build will fire up xcode for you.
If you want in-app purchaces, look in the Asset Store for things to help you.