Customers who download the app and log in using a Burger King account will receive tailored mobile vouchers. It isn't clear how regularly discounts will be available.
The app is available on Android and iOS and follows a successful launch in Spain, where the app has been downloaded 1.8 million times.
For the most part, the new app still offers standard features such as a Burger King store locator and a menu, though the chain plans to introduce more features over time.
Bruno Lino, Burger King's EMEA vice president and general manager, said: "Burger King is firmly committed to the mobile channel and we are constantly looking for ways to offer great value to our customers and encourage trials among new customers."