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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 person. 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.

What's New in Version 1.1

• Starring of messages
• Filter messages (unread, starred and more)
• Drafts automatically saved to local disk
• Possibility to exclude IMAP folders from sync
• Domain avatars (company logos)
• Customizable notification sounds
• Translations for additional languages
• IMAP compatibility improvements
• Performance improvements and bugfixes


If you like this version we would appreciate it a lot if you would write a short comment in the App Store customer review section.


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Customer Reviews

Tour de force - download this now!

The OSX Mail client was choking on Gmail, so I went looking for a new email app. I tried 4 or 5 of them, and boy were they clunky - no retina support, bad graphics, things that make it tough when you live in email all day.

Then I looked at Unibox. It was clean. However, it was amazing how many of the features I do use - flagging, filing, are there *exactly where you expect them to be*. Most of the time, it’s unobtrusive - you just see the list of people and the current emails for the current person. But when you go to flag, there’s a little star there. When you want to respond, the arrows pop up on the right. An amazing amount of thought went into every pixel - and the fonts & retina display work wonderfully.

As strange as it is to say, I’m actually happy OSX Mail failed on me - I never would have found Unibox otherwise.

My only suggestions are nits, so I gave it 5 stars:
1. I’d love to see a marker somewhere that shows how many flagged emails I have, otherwise I don’t know if I have any to get back to.
2. I’d really like an option to see a more "Traditional View" that shows subject lines of key emails so I can take in my email at a glance rather than having to click on every user. Maybe a button at the top that slides out subject lines to get a quick overview, but hides them when I let the button go?

Good app just got better

I’ve been using Unibox for about a month now and the newest update brings many additional features that bring it more inline with more established email clients. I got frustrated with Apple’s Mail, Postbox seemed better but I grew weary of it, including it’s horrible support for filetypes and PDF attachments (eh, what do you expect from a Mozilla product, it is a prettier version of Thunderbird), and figured I’d give Unibox a try.

The workflow is definitly different and definityly takes time to get accustomed to, but having used the program, I am liking it a lot better. As mentioned, the features they just added to 1.1 bring it more in line with other mail programs, specifically the ability to filter/sort your emails by read/unread, starred/flagged, attachements, and others.

It still lacks rules for automatic email filtering or sorting. I hope that comes soon, but for now, I can live without it. In my opinion, it would be a 5 start app with the additional of filtering, but for now, a 4 will have to suffice with the inability to give it a 4.5.

The best alternative to native Mail app!

I say alternative because Mail app is a whole different approach to mail. Some may like Apple’s approach, but I’m finding Unibox is fast replacing Mail as my primary mail client. It’s the prettiest mail app, that’s for sure. Setting up email accounts is much faster in Unibox than Mail, especially for mail services, such as iCloud, Gmail, etc. but setting up custom IMAP accounts is only a couple clicks away. This apps takes Apple’s conversation/thread approach and goes even farther. I thought I wouldn’t like this, but by seeing all messages to any person group by a complete conversation history, this does make things easier to follow. I give it 5 stars because it does everything I need it to do now. In the future, if it can’t do the things I *want* it do do, I’ll revisit my score. But for now, this is a 5-star app.

View in Mac App Store
  • $17.99
  • Category: Productivity
  • Updated: Apr 10, 2014
  • Version: 1.1
  • Size: 7.3 MB
  • Languages: English, Dutch, French, German, Italian, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish
  • Seller: eightloops GmbH

Compatibility: OS X 10.8 or later, 64-bit processor

Customer Ratings

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