TikTok and Douyin reached one billion global downloads in February 2019, excluding Android installs in China.
The milestone combined TikTok’s international app activity with Douyin, its China-focused counterpart. The qualification about Android installs matters because many Chinese Android downloads occur through third-party app stores rather than the Google Play Store, making them difficult to include in standard global app-install estimates.
TikTok began as ByteDance’s international counterpart to Douyin, which launched in China in 2016. TikTok entered international markets in 2017, and ByteDance’s acquisition and integration of Musical.ly in 2018 gave the service a major boost among users outside China. The billion-download milestone therefore reflected both organic growth and the enlarged audience created by that merger.
A common mistake is to choose a later milestone such as two billion downloads. TikTok passed two billion mobile downloads worldwide in 2020; the question asks about the earlier one-billion mark and specifically names the China-related measurement exclusion.