If you’re a fan of french fries, than this story is for you! McDonald’s, Wendy’s and other restaurants are offering free fries for National Fry Day on Thursday (July 13), CNBC reports. McDonald’s customers can get their free order of fries by downloading and signing up for the global fast food chain’s smartphone app. The free fries will be offered in all sizes and customers won’t be required to make a purchase to receive them. Wendy’s will be offering complimentary fries or breakfast potatoes to all customers who order through their smartphone app from July 13 to July 15.