In honor of National Cheeseburger Day, Jack in the Box will be offering fans a free burger with any app purchase on September 18, 2019.

In order to take advantage of the offer, simply make any purchase through the brand’s mobile app on Wednesday, September 18 and you’ll score a one-time use, in-app coupon redeemable for a free burger of your choice at participating locations on National Cheeseburger Day.

Just to be clear, the free burger of your choice must be redeemed on September 18, 2019 – National Cheeseburger Day.

There are over ten burgers to choose from, although burger selection may vary by location.

Image – Jack in the Box