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.
POCUS的參考書 https://pocusacademy.com/2023/11/13/pocus%e7%9a%84%e5%8f%83%e8%80%83%e6%9b%b8/