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
Landbot - An intuitive no-code conversational apps builder that combines the benefits of conversational interface with rich UI elements.
SendRecurring - SendRecurring allows you to setup, send, and maintain scheduled email reminders.
Botsify - Ever wonder if you could replace your live chat support system with a chatbot?. Its possible now with Botsify Chatbot For Website.
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.