Jack in the Box is offering a complimentary Jr. Jumbo Jack burger to new customers who sign up for their loyalty program. The burger is known for its fresh beef patty, lettuce, tomato, pickles, onions, and mayonnaise, all packed into a toasted bun. The page provides instructions on how to claim this offer, which usually involves downloading the Jack in the Box app and creating an account.

After signing up, the coupon will be available within the app, allowing customers to redeem it at their nearest participating Jack in the Box location. Users can enjoy the classic taste of this smaller-sized burger for free, encouraging more people to explore the restaurant's menu and join their loyalty rewards program. Availability might vary based on location, so it's advisable to check terms and conditions. 

 

The Jr. Jumbo Jack is a smaller version of the popular Jumbo Jack burger served at Jack in the Box. It's made with a seasoned beef patty topped with shredded lettuce, a slice of tomato, pickles, onions, ketchup, and mayonnaise, all nestled between two toasted buns. This burger is designed to offer a classic flavor with a lighter portion, making it suitable for those looking for a quick, satisfying snack without the full size of the traditional Jumbo Jack.