The Coupons App > Smashburger January 2026 Promo Codes and Coupons

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Free shake with your entree & more at Smashburger

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Search for deals and coupons from Smashburger and over 100,000 other retail stores, gas stations & restaurants inside The Coupons App. Explore exclusive shopping and restaurant offers at thousands of nationwide and local chains. Browse our best coupons, free samples, view local deals or see popular retail stores. Get alerts when we offer hot new savings at Smashburger and all your favorite restaurants & stores. Get automatic notifications when Smashburger deals are nearby. Save coupons for viewing anytime, anywhere. Get calendar reminders when your saved Smashburger coupons are about to expire. Win fantastic giveaways from our weekly contests!

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