Q:

Converting Universal app to iPhone only app

I started developing an application in a universal configuration, but later the requirement changed and the application turned out to be iPhone only. Now how do I change the application configuration to fulfill this criterion?

A:

if u're using xcode 4.2

navigate to project navigator
select your project
selct target > your project's name > summary
change the devices from "universal" to "iphone"

A:

If you're using Xcode 5.0 

Select Project Navigator
Select your project file
Make sure your project file is selected and not a target
Select the Build Settings tab
Scroll Down to deployment section and search through that for "Targeted Device Family" or search that key term in the search field at the top
Change iphone/ipad to iphone only

