I have a Nexus 6 and i know that i am not using 11GB of data every month. im just not on my phone off of wifi NEARLY that much. while im at work i can use my computer to do anything. and at home i have WiFi. i checked what is using the most data and it is Google Music, Facebook, Reddit, and snapchat.
but most of my music is downloaded to my phone, and i can use facebook/reddit on my work computer or wifi...
why is my phone progressively using more and more data each month?