WhatsApp now has over 3 billion monthly users, as announced by Meta CEO Mark Zuckerberg.WhatsApp, acquired by Facebook in 2014, remains ad-free and a key platform for Meta's AI strategy.Meta's CFO mentioned that WhatsApp sees strong Meta AI usage, particularly in one-on-one chats.Meta is focusing on advancing AI experiences, including through the newly released Meta AI app and AI tools for WhatsApp Business.