In the current digital era, gaining new knowledge, skills, or even experience seems to be a click/touch away. Teaching and learning have become increasingly challenging as learners are overly stimulated with information and technology. In classrooms of theater arts and of literature, the component of lecture is usually delivered through conventional sage-on-stage pedagogy. PowerPoint is often used during lectures while many students are, for one reason or another, losing interest: some are trolling on social networking sites or apps, such as WeChat (a close equivalent to Facebook), while others are playing games. As such, a cluster of different modes of technology is simultaneously shaping the dynamic teaching and learning when PPT, mobile device, and social networks are being used, yet their functions and purposes are disconnected from one another. To bridge the gap between teaching and learning, an innovative smartphone-app Rain Classroom, which combines PowerPoint and social network, namely, WeChat, was created by Tsinghua University in April 2016. In less than 2 years, it is used by over 2 million users in 130,000 active classes. This paper discusses key features of Rain Classroom, such as instant feedback through bullet screen, pre/post-lecture push (classroom flipping), pop quiz, survey, and open-ended questions. Researchers also share their insights on using Rain Classroom and how it impacts teaching and learning outcomes in courses on theater arts and on literature.