Restaurants across Pennsylvania, and around the country are offering deals today in celebration of National French Fry Day. Several fast food chains in the state are participating in the promotion including McDonalds, Burger King and Wendy’s. All are providing free fries with qualifying purchases through their respective apps. Also, Sheetz announced free fries as part of its tribute to one of this country’s favorite sides. To claim the offer, customers must log into the Sheetz app.