Originally Posted by dustwun77
Hello ej86, welcome to the forums!
That data usage is not right and it looks like you might want to get a handle on it pretty quickly!
Here is an S4 forum, see what they can tell you! Samsung Galaxy S4 - Android Forums
I am not sure what methods your phone has of checking on your data usage. I do not know how you can tell which app is eating it. Probably something you can turn off though. I think you should be able to do something like Menu/settings/ Accounts and sync and see what all you have going on. Need to turn something off!
If you can get on to a wifi network, that does not use your plans data either.
I received my fone around 6pm tuesday, its not even 12pm thurs and these are direct screenshots from my s4
as you can see, it's all from os, and says it's all background