LiveChat - LiveChat - premium live chat software. Approach customers directly on the website, make connections and drive more sales using LiveChat.

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Drift - A messaging app that helps you grow your business.

Zendesk - Zendesk is a beautiful, lightweight help-desk solution.

Talkus - Chat with your website users from Slack

Olark - Real-time chat and monitoring of your website visitors through Google Talk and Jabber.