TikTok was launched in 2017 for iOS and Android in most markets outside of mainland China. It became available worldwide only after merging with another Chinese social media service, Musical.ly, on 2 August 2018. TikTok surpassed 2 billion mobile downloads worldwide in October 2020, after only Zoom and Peacock.
See also: Libs of TikTok, Censorship of TikTok, Tik Tok (song), Censorship on TikTok, List of most-followed TikTok accounts, Tik-Tok (Oz).