Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Aboardly - IFTTT for automated customer emailing
BurnChurn - 🔥 Reduce churn and track exit feedback for your SaaS
indemandly - Live chat 2.0: Customer messaging that converts
Customer.io - We make it easy to send emails triggered by user behavior. Build, measure and improve your emails to activate and retain users
Twixor - Customer communications made interactive and dynamic!