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.
中1の中間テスト終了: なぜ勉強をしなければいけないのか。どう説明するのか周囲の人に聞いてみた。 http://riverport.asia/archives/571