National Burger Month may be in May, but we’re celebrating early with a free Shake Shack burger! In honor of their mobile ordering Shack App for iOS, Shake Shack is giving away a free single ShackBurger to each guest who downloads the new ShackApp, redeemable at any U.S. Shack (‘cept airports, stadiums and ballparks) until Tuesday, February 28, 2017.
How to get a free Shake Shack burger
Download the Shack App, create an account and use the promo code “shackappy” at checkout. This promo is only for the ShackBurger. You must order through your mobile app, select location and pickup time, enter the promo code, and pick up at the location. For more deets, head to shakeshack.com/app.