I think most people that would use the app would be using it either during flight, or once they get to their destination. Most of the flight planning would be done in front of a computer somewhere, due to larger screens, flight planning software, printers etc.
What I'm getting at is think of all the reasons why you would want to use a NAIPS app when you're flying or when you get to your destination. These would be helpful tasks the app could provide.
- Easy access to updated TAF's/ARFOR's.
- Submitting flight plans in an easy format
- Amending flight plans in an easy format