I wanted Mobile Magic but it's not available for iPhone yet. I purchased the Disney Magic Guide (wait times, GPS coordinates, a "Favorites" option to save all your favorite rides and go to that one link to see wait times for all, Park Hours, Maps, a Dining Option that includes a schedule - if you have one - favorites, "Near Me" (aka GPS to find the spots close to you), and a Food Finder which I think is awesome - if you want a hot dog, it will tell you the closest area, if you want a funnel cake or ice cream or a churro, etc.). I also go Apptastic since we're going to Universal too - I haven't been able to look at it a lot yet, but I think both will be money well spent!