At home we have 2 iPod touches, an iPad and my iPhone. We use all that on MY iTunes account so I can keep track of all purchases. My daughters are constantly downloading new apps to an iPod and the iPad and ALL those apps download to my iPhone automatically. I believe that is the reason that I went through 1/2 of a months data in 2 days. I know there is a way to stop those apps from downloading to my phone (apps I download to my phone are NOT downloaded to the iPod or iPad) - how do I set that??