Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Live Chat by Sumo.com - Instantly communicate with customers, prospects & visitors
Mailchimp Newsletters widget by LiveChat - LiveChat newest integration with Mailchimp helps you get in touch with your website visitors by displaying an interactive greeting that allows them to sign up to your newsletter list.
Video Live Chat for Websites - Provide real-time video chat support with screen sharing
Gist Platform - Live chat, bots & marketing automation -- free.
GoSquared Live Chat - Beautiful, simple, and free live chat for your website