By participating in the Yelp Guaranteed program, businesses signal their commitment to quality service and customer satisfaction. Program participants post a Yelp Guaranteed badge on their listings. Yelp Guaranteed is currently available for eligible Request a Quote-enabled advertisers, based on various qualification factors. Yelp Guaranteed is available on iOS devices in San Francisco, New York City, Chicago, Seattle, and Washington D.C. These new reactions have resulted in a six-fold increase in reactions to reviews, Yelp said.