Auntie Anne's Heart-Shaped Pretzels are only available on Valentine's Day and come in Original and Cinnamon Sugar flavors.
The buy one, get one free offer is for My Pretzel Perks members via a smartphone app. If you don't have the app, you have until 11:59 PM EST on February 12, 2017 to download the app and get the offer.
Photo via Auntie Anne's.