My daughter upgraded from Iphone4 to Iphone 5S and has more than tripled data usage. She used her Iphone 4 just as much as she does this phone. She got rid of some of her apps. A verizon agent told us there is a problem with this phone bleeding data and even checked while on the phone with us and saw that it was bleeding data while connected to wifi. She was told to keep mobile data turned off, get rid of apps, etc... Of course we can't get a hold of the person who admitted it is a problem with these phones. Every other person in tech support blames it on social media. Makes no sense. She doesn't use her 5s anymore than she did the 4, plus she uses less apps and got rid of two of her social medias, yet she is using 12 to 13 gigs a month when she only used around 3 with the old phone. I see articles on the internet about this phone over using data, I've see several threads here, yet verizon refuses to admit that it is a glitch with this phone. I would love to join a class action lawsuit. I'm a long time customer, stuck in a two year contract with a company who refuses to admit when there is a problem. We just want her to be able to return this phone and get a different phone. I feel like verizon doesn't care as long as they are raking in the cash!