I have one called "ride hopper" and it is pretty sweet. it tells you the wait times for rides and shows at the parks, and there is an estimated wait time, or there will be an exact wait time, which is when a person is within a certain amount of feet from that ride/show, they are able to check-in to the ride and post their wait time. its very helpful for planing your day. It also works with tons of other parks as well, but I mainly load the app up when i get to city walk, to see where i want to go first. hope this helps!