What do you have in mind for the style and theme of the app?
This has already been set. You can see more about Medlert at http://www.medlert.com. Links to iTunes are off the website as well.
The work required in our App is the existing "Settings" screen needs to change to a "Menu" screen which will have various icons for certain functions. As seen in the attached images with details.
What to avoid
The design in essence needs to be universal and not specific to iOS theme. The layout needs to be easy to use with images that intuitively work for the user in terms of what it does. The mocks attached are just a guide. Sticking with the blue and whites of our logo are essential but if the menu selection screen has color that relates to the action better, go for it. Feel free to ask questions. The header and footer tabs are to stay the same.