I have an iPhone 5, which is running iOS 9.1, and I seem to be going through 1gb of data in just less than a week. The only Internet browsing I do on the phone is a bit of Facebook each day (I also upload pictures to Facebook from time to time), and a few Google searches each day.
Could it be the Facebook app that is eating so much data? Or could it be something else?
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Why does my iPhone go through so much data in a few days?