Yes, you can purchase Disney Genie+ service on the day of your visit in 2026, provided it has not reached daily capacity. The service becomes available for purchase at midnight on the day of your park admission through the My Disney Experience app. However, a major change in 2026 is that many guests now prefer to pre-purchase their "Lightning Lane Multi Pass" (the successor to the original Genie+ branding) to secure their top-tier ride selections early. If you wait until the day of your visit, you are limited to whatever inventory is remaining after pre-purchase windows have closed. For travelers who decide last-minute, the "Tip Board" in the app will show current pricing—which fluctuates based on demand—and allow for a quick "Purchase for Today" transaction to help save time in line for over 40 attractions across the parks.