Just a heads up re. the (very helpful!) official Universal resort Orlando app- check your location settings. On day 1 at the park, I noticed my iPhone 6 battery was draining faster than normal and that location services turned on when using the app (which makes sense). I don't regularly use location services as it kills my battery so after I would check wait times, I'd kill the app. Each day at the park, same problem with my battery. As we were packing to leave, my phone popped up with a notification that the app was always using my location not just when the app was in use. So, if you get the app (which I recommend), review your settings if you find your battery is rapidly dwindling. You can change your preference to only have location services on when using the app. It's no fun to have your phone die at the park. You could plan ahead with a little portable charger too though.