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FREE ShackBurger at Shake Shack

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Shack Appy

Download The Shack App (available  for iOS), create an account and use the promo code shackappy at checkout for a FREE single ShackBurger.

The coupon is redeemable at any U.S. Shack until Tuesday, February 28th, 2017. No minimum purchase necessary.

To get the freebie please click on this link:

FREE ShackBurger at Shake Shack

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