Free Medium Slush or Drink when you download the app @Sonic Drive-In
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Get the Sonic app!
Get rewards, find locations, pay with your phone, send a gift card to friends and more!*FREE SLUSH OR DRINK: Offer includes medium Famous Slush, Soft Drink, Iced Tea, or Limeade. Offer excludes Ice Cream Slush and Frozen Lemonade/Limeade. Add-Ins cost extra. Not good in conjunction with Happy Hour, combos or any other offers. Offer valid for 30 days from the date of issue only at participating SONIC Drive-Ins.
