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.
【脳科学の達人2017】山田真希子 “ポジティブ思考の脳科学” 【第40回日本神経科学大会 市民公開講座】 http://hiroshi39jp.php.xdomain.jp/?p=300196