Is this an issue with iOS7? I started out with a 3GS on iOS4 IIRC & then went to iOS5 where i stayed even with my iPhone 4S, until last week. My deal is 500mb a month data allowance. I know many of you will spit at that but honestly - it did me fine. It was £10 a month, nothing came close. The closest i've come to reaching that in about 3-4 years of iPhone ownership is when i used 400mb on holiday. That aside, it's generally 300-350mb a month, so 500mb does me good. Upgraded to iOS7 i have 1 week left & i have 5mb data left. I've gone from 50mb to 5 mb in a day & i've barely done anything online. Less than usual in fact. Is this an issue with iOS7? Does it do something different to iOS5 that uses lots of data?