FREE ShackBurger at Shake Shack

FREE ShackBurger at Shake Shack

Download the iOS app and create an account. Add a ShackBurger to your cart, and on the second to last checkout page enter promo code shackappy to make it FREE. You’ll receive a FREE burger coupon, redeemable at any Shake Shack location, except those in airports, stadiums, and ballparks, before February 28.

FREE ShackBurger at Shake Shack

Add Comment