According to Sensor Tower's Store Intelligence data, popular video app TikTok and its Chinese version Douyin continue to top the global mobile non-gaming apps download chart with 59 million downloads in April 2021.

While Facebook ranked second with 53 million downloads. The other three apps in the top five were Instagram, WhatsApp and Messenger, in that order.

Source: https://sensortower.com/blog/top-apps-worldwide-april-2021-by-downloads