Burger King is giving away Whoppers for 1 cent — but you have to go to McDonald's first

Burger King

Burger King is offering 1 cent Whoppers through December 12 to promote the restaurant’s new app, but there’s a catch.

The promotion, called the “Whopper Detour”, says the user needs to be within 600 feet of a McDonald’s location and the app will use their GPS to unlock the deal.

Then after the order is placed, the user will be “detoured” away from McDonald’s and the app will navigate them to the nearest Burger King to pick up the burger.

The penny deal can be redeemed one time per registered user at participating locations nationwide.