To many people not happy at all when they are charged a lot of money on their data plan usage. Of course, they should actively be under the control whenever they use the 3G or 4Gb connection on youtube or Facebook videos,… Unfortunately, there is a feature that eats the cellular data like a monster. Look at the following steps to step to stop automatic download of software updates on iPhone, iPad.
Go to Settings —> App & iTunes Stores. Select the apps you suppose they should be up to date and disable “Use Mobile Data”.