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To download Unibox from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.


By eightloops GmbH

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A completely new way to organize your emails.

"Unibox's slick interface and contact-centric design make it the best client we tried." — Appleinsider
"It’s easily the simplest and most unique email app on the Mac right now." — MacAppStorm
"A welcome, fresh new approach to email on the Mac" — Macworld
"Unibox Makes E-mail About People, Not Boring Old Mailboxes" — Cult Of Mac

Unibox is an email client that groups your messages by sender. This way your emails are organized automatically and you always find what you are looking for.

Unibox supports IMAP servers:
- Gmail
- iCloud,,
- Yahoo!
- Exchange if IMAP is enabled
- Hotmail,,
- Fastmail
- QQMail
- Self-hosted IMAP servers
- Many more

Single window:
Instantly compose your messages without opening new windows.

Easily drill down into a conversation view with multiple participants.

Powerful Filters:
Show only messages that are unread, starred, have attachments or were sent by people from your address book.

Unified Accounts:
View messages and conversations across all your accounts.

Switch Accounts:
Focus on single accounts or folders when necessary.

Attachment List:
Quickly find documents and files you exchanged with other people.

Attachment Grid:
Visually browse your attachments and images.

Preview attachments without launching external apps.

Use multiple identities with a single account, including separate SMTP servers.

Btw, Unibox is now also available for iPhone and iPad.

What's New in Version 1.7.2

* Improved MacOS Sierra compatibility
* Bugfix for fullscreen mode
* Bugfix for timeout error that occurs with some providers and self-hosted servers.


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Customer Reviews

Still my favorite.

I really like Apple Mail a lot - but it still feels like too much ‘management’ with the in-box.

I also have several others, including the freebie Spark and Airmail. The former is pretty good for a freebie, the latter is fine if you want want that much granular control. For myself: I want simplicity and ease of use. UniBox is it. Sure it lacks some of the fancy-shmancy neato features like DropBox or iCloud integration, but how often does one send such larg attachements anyway? (Yeah, I know some people actually do, just giving an example of how fancy-shmancy features are rarely used that much). UniBox feels so nicely lightweight, snappy, smooth, doesn;t feel like it’s sucking up RAM or system resources, etc.

In short: Unibox focuses your email on the *SENDER*, not the message, just as the previous reviewer states. It is amazingly refreshing and once you wrap your head around this paradigm and way of dealing with your in-box, it is really annoying, possibly even frustrating to go back to the old individual-message-is-important routine. And not having new windows popping open and polluting the screen every time you create a new message and so on is genuinely refreshing.

I LOVE this app, hopefully it will continue being developed for a long time to come, even if it means repurchasing a newer version; I’m all-in.

Emails as People not tasks

Unibox is totally unique. With other email clients, I felt like each email represented a thing demanding my attention or a task to be done. With Unibox, the focus is on the person who sent the email. When emails come in, I see them as clients and persons I am in conversation with and whom I want to serve. I like how all the conversations with that person are linked, so looking back on previous conversations is made easy. In the Unibox view, I can also see emails that I sent out and am awaiting an answer. I like that reminder, otherwise I may forget that if I don’t get a response, I need to follow up. Finally, I like the attachment view, so I can quickly and easily spot an attachment without having to reopen old emails. Works for me!

Needs just a few things...

One of the best apps for fighting spam. BUT.... NEEDS gesture support for reducing clicks and quickly deleting and clearing away junk. Would also be nice to have an easy way to "unsubscribe" to junk mail built in like some other apps. IF those two things could come to pass, this would be the best email client. I have tried Spark, Mail, Outlook, Airmail, and probably 5 others. I keep coming back to this one.

View in Mac App Store
  • $15.99
  • Category: Productivity
  • Updated:
  • Version: 1.7.2
  • Size: 6.4 MB
  • Languages: English, Catalan, Czech, Danish, Dutch, Finnish, French, German, Italian, Japanese, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish
  • Seller:

Compatibility: OS X 10.10 or later, 64-bit processor

Customer Ratings

Current Version:
All Versions: