Recently, a friend asked me for help when he reached 90% of his data usage despite barely using any data. I thought this was surprising because he has an iPhone and iPhones aren't allowed to do a whole lot in the background. Despite these limitations, apps can still do a fair amount of downloading when they're not open and regardless of how they're connected to the internet. In short, you could end up going over your data limits easily without even knowing it, regardless of whether you're on Android or iPhone. In this post we're going to look at how to figure out which apps are eating your data unnecessarily and how to stop them."
This article gives several tips on how to conserve mobile data usage. What do Slashdot readers do to keep data usage within monthly limits?