CometChat - Seamless Real-Time Chat Integration for Your Applications.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
HappyFox Chat - HappyFox Chat is a live chat software for the websites.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Taskworld - Taskworld is a cloud-based collaboration platform that increases productivity, engagement at work.
Slack - A messaging app for teams who see through the Earth!