Telegram? WhatsApp?

ANSWER

TikTok. The app of the social network of Chinese origin for sharing short videos was the most downloaded during 2021 and remained in first place in the first three months of this year, followed by Instagram. By store, TikTok ranks first in the App Store, followed by YouTube; while on Google Play the most downloaded is Instagramfollowed by Facebook.

Here you can see the list of the top ten by downloads, according to VisualCapitalist.