Here is what Nils Smith on YouTube has to say (in the video below).
Just to add: MakingYouAware.com now has a profile on TikTok. Feel free to take a look.
More on TikTok from Wikipedia:
“TikTok is an iOS and Android social media video app for creating and sharing short lip-sync, comedy, and talent videos. The app was launched in 2017 by ByteDance, for markets outside of China. ByteDance has previously launched Douyin for the China market (Chinese: 抖音) in September 2016. TikTok and Douyin are the same, but run on different servers to comply with Chinese censorship restrictions. The application allows users to create short music and lip-sync videos of 3 to 15 seconds and short looping videos of 3 to 60 seconds. It is popular in Asia, United States, and other parts of the world. TikTok is not available in China and its servers are based in countries where the app is available” – Wikipedia