According to Disney Destinations, you can now purchase select Walt Disney World Resort theme park tickets via the My Disney Experience mobile app. You can buy single or multi-day Magic Your Way tickets for visits up to 10 days, with or without the Park Hopper option. At the time of purchase, you can link the tickets to existing or new Family & Friends profiles on My Disney Experience.
Immediately after purchase, if you are within the applicable selection window, (60 days for onsite guests; 30 days for offsite guests), you can make FastPass+ selections, to continue planning your vacation to Walt Disney World Resort! Look for new My Disney Experience mobile releases on the App Store and on Google Play this month.