Marriott unrolled an innovative Mobile Check-In feature, exclusive to Marriott Hotels in the US and Canada, in its popular smartphone app. Yesmail thought mobile-first when developing Marriott’s email campaign targeted to Rewards members in North America. The email employed responsive design, so guests could read the message on a computer or just as easily on a mobile device. Yesmail’s Creative team also implemented scalable design best practices, e.g. stacking content sections and enlarging text, and took advantage of mobile devices’ unique functionalities: when people clicked the calls-to-action, they would be brought to their device’s app store or “Visit TravelBrilliantly.com.” Just a few days after the launch of Mobile Check-In, Marriott’s app jumped to #1 in Travel in the iTunes app store.