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.
【断熱要件なき概念拡散〜ガラパゴス「環境」建築論】 https://kochihen.replan.ne.jp/?p=17376