Cellular data being used in early hours of morning when phone should be on WIFI and not being used?


    My family and I just made the switch to T-Mobile and I have been monitoring usage with the T-Mobile app. It is showing that data is being used by all four phone, especially mine, at the EARLY hours of the morning (i.e.. 2am, 1am). First, the phone is not being used then, but I realize some apps might be doing background stuff. However, the phones should be on our respective WIFI networks and not using cell data anyway. Any idea what is going one? Is this just the app recording data for the previous day at that time?



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