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.
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
WebEx - Cisco WebEx Web Conferencing, Online Meetings, Desktop Sharing, Video Conferencing
Whereby (formerly appear.in) - Collaborate from anywhere - video meetings with no downloads
Nertivia - Chat Client - Chat with friends or anyone around the world, free gif and emoji support.
join.me - Instant screen sharing. Instant Aha!