Slack is an instant messaging software that is made perfectly for team communication.

With Slack and Quire integration, you can:

• Get notified of updates made to tasks and projects in Slack
• Add new tasks to Quire projects directly from Slack
• Assign tasks to team members, set start and due dates, add tags and more
• View tasks, projects, members and tags whenever you want to

That's it in a nutshell. You can learn more here.