McDonald's is testing a new phone app that would allow customers to score on deals and discounts.

The app, called McD, provides offers for customers that can be redeemed at participating stores, The Chicago Tribune reported via Bloomberg. Customers can't use it to order or pay for meals, but they can customize their deals. These could include anything from a buy-one-get-one-free breakfast sandwich to a $1 Hot 'n Spicy McChicken.

McDonald's officials hope the new app will attract younger customers to make up for the stall in U.S. sales, the Tribune reported.

The company is currently testing the app in 1,000 stores, according to the Tribune, which includes locations in St. Louis. The Tribune did not indicate if any Chicago stores are accepting McD deals at this time.

Users can download McD on iOS and Android.