HT1688 when you double tap the home button to go back to your other apps are those apps always running and using cellular data even if I am not currently using them?  I thought it froze them and didn't use data other that a select few apps like Facebook,

when you double tap the home button to go back to your other apps are those apps always running and using cellular data even if I am not currently using them?  I thought it froze them and didn't use data other that a select few apps like Facebook, email, etc.  Also I always select no when I download an app and it wants me to have those push notifications.  Because that would mean that I would have to delete my apps after everytime I just them from that bar and that would be very annoying and just stupid.  Or maybe apps do use data and it's just a big scheme to make everyone go over on their data plans. 

This should help: http://speirs.org/blog/2012/1/2/misconceptions-about-ios-multitasking.html.

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