Free Medium Refresher at Dunkin’!

Dunkin’ Donuts is offering a free medium Refresher when you redeem a special promo code through their app.

This deal is quite straightforward and easy to redeem—simply open the Dunkin’ app, go to the Offers tab, and enter code HIBARBIEHIDUNKIN before June 11. It’s a nice little freebie for Dunkin’ fans and requires no additional purchase.

While this is a generous offer, free drinks are common, and the main value here is the exclusive code redemption. The deal's time limit and requirement for app use make it a limited-time, app-only special rather than a widespread sale. Given the popularity of free beverage deals, this isn't a huge price drop but still a solid offer that is worth alerting users who frequent Dunkin’ Donuts.

Overall, we think this is a good deal for Dunkin’ enthusiasts and deserving of a B+ alert due to its simplicity, limited scope, and clear instructions.