Sonic offers its customers an ideal chance to grab drinks and slushes for half the price. All they need to do is create an account at Sonic, and every time you order through the app, you can enjoy the discount.
Click on join now to create an account. Sonic also offers a discount of 1/2 on SONIC Cheeseburgers Every Tuesday if you order in the app or online through your SONIC Rewards account. The deal will apply automatically.