Specifically, it’s time to mix up the delicious smoothie you’re going to order at Smoothie King! June 21, 2021, is National Smoothie Day. Of course Smoothie King is celebrating with a royal freebie offer.
You can find an offer good for a free 20-ounce smoothie in the Smoothie King mobile app. Claim the offer in the app on June 21, 2021, and you’ll be able to use it between June 22 to 27, 2021. This is definitely a freebie you want to add to the mix.
