Zalo Vietnam
Namu Korean
Web Meeting
Discord

Discord | Your Place to Talk and Hang Out
Discord is the easiest way to talk over voice, video, and text. Talk, chat, hang out, and stay close with your friends and communities.
Telegram

Telegram – a new era of messaging
Fast. Secure. Powerful.

Telegram Messenger
Pure instant messaging — simple, fast, secure, and synced across all your devices. One of the world's top 10 most downloaded apps with over 500 million active ...