Free Slush or Drink at SONIC with App


What is SONIC? It's simple.

- Park
- Browse
- Press
- Receive
- Pay
- Enjoy

Only the SONIC app puts you fully in-the-know when it comes to everything SONIC. Download the SONIC Android or iOS app and make an account. You'll receive an offer for a free medium slush or drink in your account.

This offer is only valid for residents of:

  • United States


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