Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Skuuudle - Discover, match and monitor your eCommerce competitors.
tawk.to - tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page
Price2Spy - Price2Spy is a price monitoring, pricing analytics, and repricing tool, meant to help eCommerce professionals keep an eye on their competitors or retailers.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Prisync - Prisync is a competitor price tracking and monitoring software for all sizes of e-commerce companies worldwide.