Amazer[amaze + -er] refers to people who are ready to amaze the world with their creativity. Basically, everyone on Amazer is called Amazer. Amazer is a mobile Kpop video platform application. One of the principal concepts of Amazer is that users can swipe right one of two videos shown in a split-screen display to vote. Amazer has various video missions including K-pop, lip-sync, dancing, acting etc. When a user upload a video for a Kpop mission, the video is automatically paired with another video from the same genre. Then, those two videos are simultaneously shown in a split-screen display so that people can swipe and vote. Anyone can create new video missions and start their own video challenges. Amazer was first launched in February 2017. Since then, Amazer was featured on Google Play Store as a Hidden Gem and the App of the Month in 130+ countries. In May 2017, Amazer Lab. was picked for Google Korea’s residency program for promising IT startups.