Mailchimp for LiveChat - Newest Mailchimp integration allows you to gain new subscribers via a chat widget on your website and utilize LiveChat data for your marketing campaigns.
Callbell Chat Widget - Chat with visitors using messaging apps by Callbell
Live Chat by Sumo.com - Instantly communicate with customers, prospects & visitors
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Live Chat by Landbot - Live chat that combines chatbots with human chat
Gist Platform - Live chat, bots & marketing automation -- free.