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.
Swift(스위프트): 아이폰 진동(Vibration, Haptic) 구현하기 上 (기초) http://yoonbumtae.com/?p=5073