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The app is just on of the things used to find your iPhone. It is not the service. The service has been a part of iOS since version 3.0.
 
The app is just on of the things used to find your iPhone. It is not the service. The service has been a part of iOS since version 3.0.

Oh, but why have the app on your iPhone then? If it's lost you can't use the app anyway.
 
Maybe you have other iOS devices on your account or maybe you have friends that need to use it to find their lost iPhone.
 
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