Dairy Queen is offering a cool start to the summer. On June 21, the summer solstice, you can get a free small classic or dipped cone with any purchase. 

Dipped options include Orange Dreamsicle and chocolate, or keep it classic with a vanilla cone. 

But you'll only be able to get the deal through the mobile app at participating locations. Users will find a coupon on the app June 21 to redeem their free cone. (Note: Mobile deals can't be used at any Dairy Queen locations in Texas.) 

You can download the app here. 

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