Shake Shack Restaurants: Get a ShackBurger Free w/ $10+ Purchase + Free Pickup (thru May 10)

Shake Shack Restaurants: Get a ShackBurger Free w/ $10+ Purchase + Free Pickup (thru May 10). Thumb Score: +34. Offer only valid for qualifying orders placed at a kiosk in-Shack, or for delivery or pick-up via the Shake Shack Mobile App or shakeshack.com, and fulfilled May 1st – May 31st 2026 ('Promotional Period'), containing the specified promotional burger of that day ('Promotional Burger') at participating US Shake Shack locations (excluding airports, stadiums, arenas, travel plazas, and museums). Offer not valid for drive-thru orders or orders made through third-party delivery apps. Limit one (1) free Promotional Burger per order. Must use promotional code 'FREEBURGER' at checkout. Code is case sensitive. Offer code will only work in all caps.