It is Burger King's 70th birthday! To celebrate, they are hosting a B-Day Perks Week, where you can find deals daily. Today, you can score a FREE Medium Soft Drink with a $0.70+ purchase! You must have a Royal Perks account (free to join) to get this deal. You must activate Offer in the “Offers” tab on the BK App or bk.com before placing order.