Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
HexChat - HexChat is a fork of XChat with bug fixes and new features.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
irssi - Irssi is a terminal based IRC client for UNIX systems.
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
mIRC - mIRC: Internet Relay Chat client