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.
서울 단층 분포도에 '과거 지진'위치 정보를 붙여 넣었는데 ... : 동아 사이언스 https://aju.news/489384.html