Around.co - Around.co is an app that provides video calls to remote teams all around the world.
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.
Whereby (formerly appear.in) - Collaborate from anywhere - video meetings with no downloads
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Team.video - Happier, more productive video meetings
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.