Smoothie King: Free smoothie size upgrade every Friday

Status: Active
Published: 2026-01-30

If you are a member of the Smoothie King club, on Fridays you can increase the volume of your smoothie from 20 ounces to 32 ounces completely free of charge. At my store, small (20 ounce) smoothies typically cost around $7, and medium (32 ounce) smoothies cost around $10. Some locations also offer a $1 upsize for those who are not club members (ask them!). The offer applies to all smoothies on Fridays. The offer is available online and in stores through the app.

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