I just assumed i would be notified of available updates, like my iPad. Just realized my phone has auto updates turned on as default, so it's been updating while on cell data. Go to settings/itunes & appstore to turn it off, and update your stuff when on Wifi. I just came from an Android phone to iPhone, so I'm just learning a lot of stuff. You experienced people probably already know this. So, this is for newbs like me.