Julia Chan / Sensor Tower blog: Sensor Tower data on top apps across the globe: Telegram was #1 with an impressive 63M downloads in the month of Jan. 2021. Facebook, WhatsApp and Instagram were in close second place with the number of 63 million. Messenger downloads have dropped since Dec. 2020. Telegram was the top downloaded app (non-gaming) globally in January 2021, with more than the 63 million installed. That’s 3.8 multiples of Jan. 2020 downloads.