Breaking out large app into smaller apps.

Question

Hi,

I have a large mobile app that performs many different functions and want to try and break that out into smaller apps that do only a small portion of what the main app does. At the current time the work around I have just is a hard coded string that identifies what app is being used from each android or iOS project in the MainActivity or AppDelegate and then from there the specific shell is called based on what app project is built. My issue with this is that every app is still the same size since the main shared code base is all compiled. How would I go about specifying only what pages to compile, or is there a better way to structure this?

Thanks in advance for the help.