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

Twist - Check fewer notifications, do more meaningful work. Twist is the team communication app for calmer, more organized, and more productive teamwork.

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

Juphy - Manage all your social media conversations, comments, reviews, and support requests in a single, shared inbox. Boost Sales on Social Channels via Messaging.

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

Redesk Beta - Async-first messaging app with goals, deadlines and upvotes.