How to maintain 2 different versions of an app on the iphone

Is there any way to maintain 2 different versions of the same app on the iPhone? One version is the actual production build and another version is the development build which I can use fo开发者_如何学Pythonr experiments i.e. UI changes

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Xcode 4 allows you to create targets for your applications. You might find those useful. I use them to maintain a free version and a paid version of my apps.

http://developer.apple.com/library/mac/#featuredarticles/XcodeConcepts/Concept-Targets.html

Each target should then have a different bundle ID as this is what the phone uses to distinguish different apps. If you need a specific ID, (i.e for push notifications, game center or iads), I'm not sure on a solution sorry

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You can change the Bundle ID of the development version. You can install different versions of the same app if the bundle IDs are different.