Sonic Drive-In FREE Slush For New App Users
For a limited time, when you download the Sonic Drive-In app for IOS or Android and set up your account, you’ll get a FREE slush – no purchase required! So pull out that phone and start downloading your new app.
Once you set up your account, you should receive the offer immediately. You can claim your FREE Slush by clicking “redeem” and showing the coupon to your carhop at any participating Sonic Drive-In!