Wendy's is selling a junior bacon cheeseburger for just one cent through September 22, as long as you buy something else from the menu on its app. Also, Burger King is giving away a free cheeseburger as long as you buy something else that costs at least $1 through its app. Smaller chains are offering similar deals, too.

McDonald's, Burger King, and Wendy's are all offering special cheeseburger deals on National Cheeseburger Day. McDonald's is offering 50-cent double cheeseburgers via their app. Other chains like Buffalo Wild Wings and Denny's have their own unique promotions for the celebration.