I love Touring Plans and the Unofficial guide. I used the information all 3 times I've been to WDW. The last time we were there with a large family group. Everyone would be complaining about how crowded the park they were in was and how long all the lines were. Meanwhile, we hadn't seen lines all day and rode everything we wanted as much as we wanted all trip. Knowing which park to go to on which day was crucial. Great book, great plans. Didn't use the app. Maybe next time.