Mac App Store

Mac App Store is the simplest way to find and download apps for your Mac.

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

Open the Mac App Store to buy and download apps.


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 1.6.2

- Improved macOS Sierra compatibility
- Small bugfixes and improvements


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Customer Reviews

Stopped Working on my phone

When I found this app I was very excited and bought it for my phone and computer. At first I loved it. It was so much easier to see my emails with the logos. But deleting emails was a pain as there was no feature to delete all items in your trash - too time consuming. My phone was always giving me messages it was full. This week it stopped loading all my emails even when I deleted almost everything on my phone. I deleted Unibox and loaded all the apps I deleted and everything loaded into a new email app without a problem and with 7 Gigs of space left over….don’t know how that is even possible. Good idea but needs work, wish I hadn’t paid to have it on my laptop it never did synch together like I had hoped.

Stopped working

I used Unibox for almost a year and it was fantastic. I loved the way the emails were stacked by name and it was so simple to see emails from my 5 different email carriers (3 gmail, 2 msn) all together. However in the last almost 3 weeks I can’t receive or send any emails. I was at first told it was a compatibility issue with Gmail, but that doesn’t explain why I can’t get my MSN mail. Anyway, if they fix all the problems with this system I will gladly go back to using it, but for now I have to move on to something else.

Lots of promis but too buggy to use

Keeps popping up an error saying something mbox is not a valid mail box over and over every three or four mins. organization by person is fantastic but very hard to track interactions between multiple parties.

I have 12 years of email and the time grouping is just insane saying stuff like June 21 - June 30th with only two people in it??? Can't be right.

Also recipt of new mail is very slow but instantaneous to other mail clients.

Just cant trust this enough to use it.

View in Mac App Store
  • $15.99
  • Category: Productivity
  • Updated:
  • Version: 1.6.2
  • Size: 6.3 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

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