End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
WhatsApp 每月活躍用戶數衝破 500,000,000! https://qooah.com/2014/04/23/whatsapp-hits-500-million-active-users/