The social media world moves fast, and the next big thing is already upon us. It’s called TikTok. A video-based app where users create short clips to share with the world, TikTok is growing at a rapid rate. The app has already been downloaded a billion times and boasts 500 million active users around the globe. We conclude our series on Facebook vs Snapchat with a look at the next big player in the social media game.