I have bought my wife an Ipad and I have downloaded apps that are on my Ipad to her Ipad. This obviously saves paying for apps twice. She used to use the Facebook app on my Ipad edby entering her password details. I am not on Facebook. However when she now logsin to Facebook on her Ipad the Facebook app on my Ipad opens and I can view her Facebook site which she does not welcome. Can I resolve this problem?