Has the App Store, Safari, iTunes, or the Camera app gone missing from your iPhone, iPad, or iPod? Good news: You didn't delete them - you can't! If you believe you deleted the App Store, go back to Settings -> Screen Time -> Content & Privacy Restrictions.Get the App Buy Once, Read Everywhere Whether you buy books and magazines at BN.com in your app, on BN.com, in your app, on BN.com, in your app, on BN.com, or on your NOOK, they’ll automatically sync to the Library in your NOOK Reading App.