Technically, no, not every member of your party needs to have the My Disney Experience (or Disneyland) app downloaded on their individual device. A supportive peer "coordination" tip: you can designate one person as the "Lead Planner" who manages all tickets, dining reservations, and Lightning Lane selections for the entire group. However, in 2026, it is highly recommended that at least two adults have the app to allow for "divide and conquer" strategies, such as one person mobile-ordering lunch while the other manages a virtual queue. If a group member wants to venture off on their own, they will need the app to check wait times or open their hotel room door via the "Digital Key" feature. For those without smartphones (like children or seniors), they can use a MagicBand+ or a physical "Key to the World" card for park entry and Lightning Lane redemption, as long as their profile is linked to the Lead Planner’s app.