delivery service, unfortunately not all places are partnered and delivery fees are very expensive. also the food itself is more expensive on the app. a $9 meal from white castle is over $20 through the app. Denny's slams are about $15 through the app. (after delivering I paid $23 for a slam.) I would only suggest using their service if you absolutely need to eat or you will die. Or you get a $50 gift card that only bought you 2 fast food meals...