The deal called the "Whopper Detour" was intended to promote Burger King's new app. When the app registered that a customer was within600 feet of a McDonald's location, it unlocked the deal to order a Whopper for one cent.
Usually, a company doesn't direct customers to visit its biggest rival. But, according to executives, the deal was weird enough to work.
Burger King's parent company, Restaurant Brands International, pre-released comparable sales results on Wednesday, along with the announcement of leadership changes within the company.
Burger King's US comparable sales were up 0.8% in the quarter, with executives highlighting the Whopper Detour as a success.
"It was a fun promotion that drove a lot of downloads and also allowed us to focus on our flame-grilling heritage," Jose Cil, RBI's newly-appointed CEO, said on a call with investors on Wednesday.
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