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

Wheel of Popups - Interactive exit-intent website popup for lead generation

Zopim - Live chat is a faster and more personal way for you to engage your customers. Free for 14 days. No credit card required.

Poptin - Create engaging and high converting website pop ups and contact forms in minutes. With Poptin, you get access to a feature-packed conversion rate optimization toolkit that converts more website visitors into email subscribers, leads, and customers.

Crisp Chat - Multi-channel customer support software

13Chats - Pop-ups and widgets based on client actions on your website