Hello I was wondering if someone can help me. Im an android noob and wanted to know if there is a way to sign out of the google play store or do you just leave it open ? I am concerned about it chewing threw my data if I leave it open and you are supposed to close it. I only download and update using wifi. Can you shut it off? As a previous iPhone user I know you can log out of app store but not sure about the droids Thanks!