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): 로컬 알림(Local Notification)을 스케줄에 맞춰 반복 발신하기 (및 한계점) http://yoonbumtae.com/?p=5064