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ContactPrivacy protects your iPhone data, particularly your contact data, by warning you when an application wants to upload your contacts to its servers without your express permission.
Path, Facebook, and others sparked controversy when they were found to upload your contact list data to their service without asking explicit consent from the user. While Apple is still to roll out a fix, this application really protects your data. You can always flick a switch in its settings to allow it though, meaning you can still "Find friends" who use the same service as you.
Compatible with: iOS 5, 5.0.1, 5.1.