Hey there, hi there, ho there, Jack! Welcome to
planDisney, where we love helping our fellow Guests make their Disney dreams come true.
I'm glad to hear that you're ready for all your wishes to come true with the help of the
Disney Genie+ service. Once you're here at the
Walt Disney World Resort, you'll be able to purchase the Genie+ add-on through the My Disney Experience mobile app at midnight EST on each day that you plan to visit the Theme Parks. In terms of your Lightning Lane selections, however, you'll be able to book them at 7:00 a.m. EST daily, regardless of where you're staying.
Regarding your second question, I am pleased to let you know that, at this time, the Disney Genie+ service cannot sell out. Like you said, however, some attractions might sell out of Lightning Lane entrances throughout the day. Pro tip: make sure to book your next Lightning Lane entrance as soon as you've used the last one in order to take as much advantage of the service as you possibly can!
Thank you so much for stopping by with your question, Jack. It has been a true pleasure helping you out today! If you have any other questions, you know where to find us.
Have a magical day,
Ana Paula