"Score a Free Whataburger on National Whataburger Day!"
Whataburger is celebrating its 73rd birthday with "National Whataburger Day" and offering free burgers to members of its rewards program. Customers must download the Whataburger App and create a rewards account to be eligible. No purchase is necessary, but customers must have placed at least one order on the app within the past year. Limited quantities of National Whataburger Day table tents will also be given out to customers visiting the restaurants on the birthday.