On the iphone 6 there is an option to disable automatic app updates. This was a feature apple introduced in ios 7 that basically allows your iphone or ipad install any kind of app update without having to manually go to itunes or the app store. While this may seem like a good idea it is a huge battery killer and will eat away at your monthly data. So to disable automatic app updates on your iphone 6 first go into the settings and scroll down to itunes and app store section. From in here you will see in the automatic download section the option updates. Simply turn this option off to the left and it will disable automatic app updates on your iphone 6.