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 不單止可以撤回訊息,還可以修改已發送訊息! https://qooah.com/2016/12/19/whatsapp-testing-edit-message/