Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
ReachOut - ReachOut is a field service management suite to streamline field processes with customizable mobile-based forms and workflow.
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
DeltaSalesApp - Field Sales Force Automation & Field Force Tracking Software
JivoChat - JivoChat is a live chat that enables you to talk to visitors on your website
Smart Service - Smart Service's QuickBooks integration makes it the ultimate scheduling and dispatch software for HVAC, plumbing, pest control, and other service industries.