Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Recurrr - Send recurring emails
Drift - A messaging app that helps you grow your business.
SendRecurring - SendRecurring allows you to setup, send, and maintain scheduled email reminders.
Faqbot - Build your chatbot for FAQ, sales and lead generation automation.
Followup.cc - FollowUp for email is a lightweight productivity suite that keeps your conversations and tasks from slipping through the cracks. Set perfectly timed reminders that arrive at the top of your inbox, right when you need them.