https://www.cnbc.com/2019/02/07/how-to-use-tiktok.html

TikTok is a social app lets users watch and create short videos that are usually set to songs. TikTok is a hit with teens, and it's become popular enough to catch the attention of Facebook and Snap.

The app is owned by China-based company ByteDance and known as Douyin in China, and it has a reported 500 million monthly active users across the globe. In the U.S., it currently ranks No. 3 in Apple's list of top free apps, trailing only Facebook's Instagram and Google's YouTube.