internally schedule an update in iphone

When the application which we built is offline or closed, Is it possible to pop up a message to open an application without the influ开发者_JAVA百科ence of back-end server ? Say for every one week ?

No. It isn't possible without server interaction (Push Notification).

You can't do this in 3.0. Starting in iOS 4 you can use local notifications that don't require a server which is explained better on this blog.