Unibox Alternatives

Dedicated Gmail client with clean integration of Google Calendar, Contacts, Google Drive, and...

The Power Email App for busy professionals, like you.

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

Shift is the ultimate email client for managing Mail, Calendar, Drive, Slack, Asana, Jira, Evernote, and all your other favourite apps

freemium

Airmail is a lightweight and lightning fast mail client for Mac.

Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

The powerful productivity browser like no other, multi-account sign-in, tab sleeping, groups & pins

Open Source freemium $8.32 / Monthly

Mailplane is the best way to use Gmail on your Mac. Use an unlimited number of accounts, get new mail notifications, use plug-ins and much much more.

A desktop email client for your Mac, without a browser !

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

Open Source

MailMate is an alternative email client that was designed for the macOS.

MailTab for Gmail is the ideal app for instantly accessing your Gmail account without having to open your web browser.

A native macOS email client for Gmail

Privacy-aware email app for Mac & iOS