Dunkin’ is offering 1,000,000 free coffees to customers in the United States for a limited promotion. Multiple outlets report that customers must use Dunkin’s mobile app to claim the offer. The process involves entering a special promotional code that unlocks a free drink reward. Sources describe that the code is entered in the app’s offers or rewards area—specifically in the “Offers & Rewards” section according to the Mint report. The Independent and The Hill similarly state that app users must input a code to receive coupons tied to the free coffee giveaway. The offer is designed to be redeemed through the app rather than through other channels such as in-store coupons or online checkout. The promotion is framed as a giveaway of a total number of free coffees, with eligibility tied to customers who can access and use the app’s reward features. The outlets do not provide additional details on redemption limits beyond the promotion’s overall quantity.