Tik Tok, or Douyin (抖音) is a short video social app, and the MOST downloaded app worldwide on App Store in Q1 2018[1]. Launched in Q3 2016, it has reached 150M MAU, DAU / MAU as 45% and 50.5% users will spend more than half an hour on the app per day. 93% users are under 30 [2]. Outside China, in Japan and Thailand, it has reached #1 in free app category. I spent some time collecting reports from