Wendy's Frosty Key Tags are back! For just $2, you'll get a key tag that's good for a FREE Jr. Frosty with every single purchase at participating Wendy’s locations throughout the entire year of 2021. You can buy a Digital Frosty Key Tag in the Wendy's app or you can buy a Physical Frosty Key Tag online or at a participating Wendy’s location. If ordering online, there is a $1.50 shipping cost.