Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates

Live Chat by Sumo.com - Instantly communicate with customers, prospects & visitors

Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Nylas Mail - The Nylas Cloud API powers your application with email, calendar & contacts features. Built-in features for better email, calendar, and contact management.

Live Chat by Landbot - Live chat that combines chatbots with human chat