xuetangX is an application that allows students to take MOOCs (Massive Open Online Courses) using Android devices. After installed, the app allows students to browse, signup, and take the MOOCs hosted on http://www.xuetangx.com. The MOOCs include ones from top ranked Chinese universities such as Tsinghua University and Peking University. They also include ones from MIT, Harvard, Berkeley and other world top ranked universities in edX consortium (http://edx.org).