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.
真人圖書館 (二)【轉型與創業 – 第二人生・終身學習】 http://graduate.socialwork.hku.hk/2022/04/04/2022_online_sharing_2/