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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 1.8.2

- High Sierra compatibility update


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Customer Reviews

Unusable since High Sierra update

You would think a paid app that has had access to the developer’s beta for almost 6 month would’ve had these issues figured out, but they don’t and it’s disappointing. As others have said, there is a bug that contacts are not displayed. With the bug and how the UI is, you have to click on invisible areas to see if there is an actual email there. So far I haven’t seen any indication of a fix coming. DO NOT BUY until this issue is resolved.

I love Unibox’s user centric approach

Finally an actionable organized inbox. Keep it up guys from Unibox! This is the way to go with your email! Highly recommended.

Email reinvented… magnificently.

I can’t praise Unibox enough. It is by far the best new concept in email management I have ever seen. I started with Pine in 1992, then to Eudora in 1993, Outlook in 1998, Gmail in 2004, and Unibox in 2016 and have stayed with it since that time across all my devices. How is Unibox different? Unibox is all about simplicity and helping you avoid information overload. In short, it displays your inbox by: (1) the name of the sender and (2) in chronological order. No subjects are displayed in the main view, period. The sender’s name is never displayed more than once in the chronological listing. Unibox groups all emails from the sender into one beautifully presented thread. Email subjects are not visible until you click the sender’s name to open the email (or thread, if the sender has ever emailed you before). Conveniently, you are (by default) presented with your entire email history with that sender in chronological order. One click will show you every attachment that sender has ever sent you, easily sortable by file type (in list view mode, or in a resizable thumbnail view mode).

Who wants to look at a huge mess of email subjects when opening up your email client? What tends to matter most in email is the *sender* — and, secondarily, the subject — and Unibox has cleverly mastered this point.

Managing your inbox with Unibox is a breeze and, to some degree, a pleasure. For example, have you received hundreds of transactional emails or newsletters from various senders over the years -- iTunes newsletters, perhaps? In two simple clicks on the sender’s name, you can Archive or Delete one or all of those emails.

I suffered from e-mail overload from three different accounts for years. Unibox has helped me to master my email once again. Gone are the days of being overwhelmed by too many emails. This app was well worth the amount I paid for it.

One word of caution: Some other reviewers of this app were frustrated with Unibox because, I believe, they did not realize that the initial sync of all your emails and attachments' details will take 1-3 days to sync fully. (In my case, I had about 300,000 emails in 26 gigabytes spanning 3 separate Gmail accounts. Unibox handled the import of the data with ease over about 2-3 days.) The full power of Unibox’s search capabilities and attachment view modes may not be completely apparent to you until the initial sync has completed, but it will be reasonably functional before that time.

View in Mac App Store
  • $13.99
  • Category: Productivity
  • Updated:
  • Version: 1.8.2
  • Size: 5.6 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:
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