Kiwi IRC - A hand-crafted IRC client that you can enjoy. Designed to be used easily and freely.
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.
Colloquy - Traditionally, chat clients on the Mac have been anything but glamorous.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Terminal on FB Messenger - Take control of your terminal through Facebook Messenger
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.