Mattermost
Description: Mattermost is an open-source, self-hosted online chat service with file sharing, search and integration capabilities. It supports text, images, videos and custom emojis across PCs and phones with instant notifications.
Type: software
Pricing: Freemium
Meetor
Description: Meetor is a video conferencing and online meetings software. It allows users to host HD video meetings with screen sharing, recording, polls, chat, and other collaboration features. Meetor works across devices and aims to provide an easy-to-use meeting solution.
Type: software
Pricing: Freemium