I assume this is only for currently running apps, and not what was running last month or whatever. I'm trying to figure out which app was used last month, because the description for "Communications and Device services" has apps listed that I don't use.
I am glad you are being proactive on your data voltress. The Data Utilization tool will give you a general idea. Due to privacy laws we are unable to view specific details. The communication and Device services are popular audio and video services. For example: Google ads, Skype, Facetime Viber etc. You can change you plan at http://vz.to/14M9gib anytime.
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