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Deleting app data when deleting it in iOS

I am new to iOS development. Now I am creating an application that will store contact information in the address book from within the application. (This app will store your friend's contact details such as mobile phone number and email address etc. In the address book when he installed the same app on his iPhone and accepted you as his friend).

An application contact differs from native contacts by placing a note property as the application name.

My question is, when you uninstall / uninstall an app, it clears all data except contacts that are stored by the app itself. So how do you delete contacts? App Platform - iOS 5 and later and xCode version 4.5.2 Thanks

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You can not. If your app keeps in touch with the user's iPhone contacts, there is no way to delete them when your app is uninstalled.



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Unable to detect application uninstallation. Thus, there is no way to delete your data before deleting it. So the answer is no.



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