Buy One, Get One FREE at Wendy's - With the new Wendy's mobile app, you can get a Buy One, Get One FREE Dave's Single Burger offer right now! Plus, a BOGO Spicy Chicken Sandwich offer, $2 off any full-size salad and more to come. Click this link then download the Wendy's app for iOS and Android and create a free account. To locate your BOGO offer, open the app, tap on your "Account" then "Rewards & Offer" then "Offers". Do not tap the "Use at Restaurant" button until you are at the store and ready to redeem. NOTE: The "Offers" are available to everyone. However, the "Rewards" are only available for Mobile Ordering and that feature is currently available in Phoenix, Portland, Austin and Columbus municipal areas, only.