WhatsApp has joined the rarefied club of apps with over 3 billion monthly active users, Meta CEO Mark Zuckerberg revealed during the company’s Q1 earnings call on Wednesday.

The milestone places WhatsApp alongside its sibling app, Facebook, as one of the few platforms in the world to cross the 3 billion user threshold.

Founded in 2009 and acquired by Meta (then Facebook) in 2014 for $19 billion, WhatsApp has grown steadily without ads or subscription fees.

The app reached 2 billion monthly users in 2020 and has now added another billion in just four years, cementing its dominance in global messaging.