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.
四名大一学生编程序自制宿舍智能门锁:支持人脸、语音识别 https://codingnote.cc/zh-tw/p/621055/