Android Problem - repost

I 'm looking for a good resolver about follow problem. The problem is Without rooting, can you hide app completely? that means, Hide app in drawer(desktop) and Hide app in Application Manager(Settings>Application>Manage applications). User must don't notice install as well as running of app. Do you understand? I need only method, don't need any coding or products. If you have any solution or any good ideas, please bid immediately.