“NOW EXTENDED 🍟 Due to popular demand, we’re extending any-size FREE FRIES with any purchase weekly in the BK App through 12/31/23! At participating US restaurants. Terms apply,” Burger King announced in a landmark app push notification on Friday. The ruling by Burger King’s marketing department is an affirmation of the right of all Americans, regardless of race, color, or creed to a free serving of fries once a week if they’re a member of the BK Rewards program.