Slack - A messaging app for teams who see through the Earth!
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Snagit - Screen Capture Software for Windows and Mac
Mattermost - Mattermost is an open source alternative to Slack.
BandiCam - Bandicam is a screen recording platform built to accommodate the needs of a wide variety of different users.