Participating 7-Eleven stores offer the Gatorade Flow 28-oz. Bottle in Strawberry Splash for free when you download the 7-Eleven app for iOS or Android. After downloading, you'll need to navigate to the "Scan & Save" section to see this offer and reveal it at checkout to the cashier. That's a savings of at least $2 and the best deal we could find. Find a 7-Eleven location near you. Deal ends May 7.