How to turn off cellular data except find my iphone?

Is there any way to turn off cellular data for the Iphone 4/4s completely except for Find My Iphone? I already know how to turn off the cellular data, but is there a way to exclude an app from that?

First off, Find my iPhone doesn't need cellular data to function, it needs a GPS signal you can turn off your cellular data and leave your location services on so that you can always use your Find my iPhone app.

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