Monthly active users are the ultimate measure of engagement in the messaging app world, and WhatsApp’s 2 billion monthly active users in April 2024 cemented its global leadership. WeChat followed with 1.3 billion monthly active users, while Facebook Messenger held steady at 1 billion monthly active users. Telegram’s 900 million monthly active users reflected its growing appeal, and Snapchat’s 800 million monthly active users showed its ability to maintain a loyal user base. QQ, with 554 million monthly active users, rounded out the list, proving its relevance in a highly competitive market.