ByteDance acquired the Musical.ly video app in 2017, merged it with TikTok, and relaunched the combined entity in August 2018, keeping the name TikTok.
In the past year, TikTok has risen in popularity in the US, particularly among teens.
According to Comscore, TikTok had 17.6 million US mobile app unique visitors ages 18 and older in August 2019, a 135% increase from August 2018.
While TikTok is not nearly as popular as Instagram and YouTube, teens ages 13 to 16 are just as likely to use TikTok as Facebook and Twitter, according to September 2019 survey data from Morning Consult. Read the rest at eMarketer.