With Shake Shack's imminent price hike looming, we've made it our mission to savor those crinkle cut fries before they cost us more. Which is why we're relieved to hear—and ecstatic to share—that the popular burger chain will be doling out free burgers now through February 28.

The freebie giveaway is part of a promotion for Shake Shack's new iPhone app. Here's the deal: Anyone who downloads the new Shack App will receive a coupon code ("shackappy") that can be redeemed at any U.S. location for a free single Shackburger. But you'll also have to create an account on the app, which will then allow you to order ahead and schedule a pickup time. No more insanely long lines—woo!

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Unfortunately, there isn't a Shake Shack app available for Android just yet but we assume another free burger promotion will run when it finally does debut. Fingers crossed.

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