Develop a Mac Application

I want a simple Ios mobile application to be developed in xcode-5 which should include 5 or 6 screens with navigation between them and moreover it should seems to be a real time application. You can also include database connectivity to store the data. Requirements: Have five or more screens Have a means to navigate between the screens Have code from one screen affect, or be affected by, another screen, for example a config screen, or a summary screen. Be well organized Be visually appealing Do something someone might have a use for