Unibox Alternatives & Reviews


Unibox is an application that aims to completely overhaul your email experience. Unibox resorts your email so that you can group the messages you receive by their sender... read more.
Rating (4.33)
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19 Best Alternatives to Unibox

Inbox by Gmail icon

Inbox by Gmail

Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
Apple Mail icon

Apple Mail

macOS Mojave brings new features inspired by its most powerful users, but designed for everyone to the Mac.
Postbox icon


Postbox is an email client that combines all of your email accounts into one program for use on your Mac or PC desktop. The software gives you access to both IMAP and POP email accounts, along with your RSS feeds.
Opera Mail icon

Opera Mail

Opera is a secure, innovative browser used by millions around the world with a built-in ad blocker, free VPN, units converter, social messengers, battery saver and much more - all for your best browsing experience.
Nylas Mail icon

Nylas Mail

:love_letter: An extensible desktop mail app built on the modern web. Forks welcome!
Inky icon


Inky is a software program that roots our phishing emails to better your cybersecurity. Phishing is the process by which cybercriminals copy the majority of a legitimate email, but outfit it with an attachment that leads to a site that makes you more vulnerable to hackers, exposing your personal, and oftentimes financial, information.
Airmail icon


Airmail - Lightning Fast Mail Client for Mac and iPhone.
MailMate icon


MailMate is an alternative email client that was designed for the macOS. Power, stability, and increased security are the hallmarks of this program. The software was developed by Benny Nielsen and has a small number of users when compared to other email clients.
Polymail icon


Polymail is the email and sales productivity platform for growing businesses.
TypeApp icon


TypeApp - The best Android and iOS email app ever created for mobile devices.
Kiwi for Gmail icon

Kiwi for Gmail

This is the software that Google should have developed itself.
Mailplane icon


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.
Astro icon


We believe that what makes channels so powerful is a thriving platform that brings together conversations, files, and best-of-breed software tools into one streamlined hub for collaboration.
Mailspring icon


Mailspring: The open-source, extensible email app for Mac, Linux, and Windows with open tracking, link click tracking, contacts enrichment data and more.
Mozilla Thunderbird icon

Mozilla Thunderbird

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

Microsoft Outlook

Microsoft Outlook is a popular information manager that is included in the Microsoft Office suite that can help you keep your email, calendar, contacts, and more all in one place.
Boxer icon


Home · Products · Mods · Liquids · Contact Us · Where To Buy. The Boxer Mod. Featuring a YiHi SX350J-v2 Chipset. Evolv DNA200.
Mia for Gmail icon

Mia for Gmail

Mia for Gmail is powerful email client and notifier for Mac OSX. It stands on your Mac's menu bar.
Canary Mail icon

Canary Mail

The best email client for Mac & the best email app for iPhone & iPad. Get secure email encryption for Gmail, Office 365, iCloud & Yahoo w PGP. Now on App Store.

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Unibox Icon More About Unibox

Unibox is an application that aims to completely overhaul your email experience. Unibox resorts your email so that you can group the messages you receive by their sender. This unique feature allows you to more easily communicate back and forth with people. Unibox also presents entire threads of emails to you, allowing you to see correspondence as it actually occurred. It also shows attachments as their content instead of as a link to their content that must be downloaded. Unibox is sorted by several incredibly popular email providers. The goal of Unibox is to make your email thread appear more as a conversation.

Pros of Unibox

Unibox can resort your emails so that they are sorted by sender instead of by date. This makes navigating through your emails much easier and feels more like texting than emailing.
You can see attachments as they appear in a message instead of having to open them all separately.
The ability to see old emails as you are writing emails is very helpful as it keeps you on topic. You will most likely write better emails as a result.

Cons of Unibox

Always viewing your emails by sender as opposed to by date can make you forget about important recent emails that you needed to respond to.
Sometimes viewing attachments can be a slow process if you do not have a very strong internet connection. If you have a stronger internet connection, then this issue should not come up to often for you.
While most of the more popular email sites are supported but Unibox, they cannot claim to be compatible with them all, and if you have a more obscure domain for your email then there is a chance that Unibox could not be compatible for you.

Unibox Icon Features of Unibox

Unibox sorts your emails by sender instead of by date.
This is a very convenient way to navigate around your email and makes your email threads feel more conversational.
The single window feature that Unibox offers allows you to see emails that you have written or received in your thread as you write your emails.
This helps you remember what you wanted to say in response as you write.
With Unibox you can see attachments in emails as you read them as opposed to afterwards when you click on a link.
This convenient feature is unique and very outside of the box.

Unibox Reviews

by grex about Unibox on March 2, 2018:
Unibox is an incredibly helpful program for several reasons. The most important overall theme of Unibox is that your communication on email will read more as a conversation, which is more similar to what email really is than the program it usually appears as. The app makes your email flow much more smoothly and reading through emails feels more natural. It is really nice that it allows you to see attachments as a part of the email. This is something that you do not put much thought into when going through emails, but is a really nice feature when you actually get to use it. Another feature like this that comes in handy is the single window feature that allows you to read and write emails at the same time from one window.
by Mikael Lundqvist about Unibox on May 25, 2019:
Most people are incapable of grasping the genius in this app's design because it's so simple. Simple = dumb, right? Different = wrong? No it's not.

The simple sort by sender minimises clutter in the most brilliantly elegant way I've ever seen. No more searching for a particular mail. It still sorts by date but also by sender!

If the inbox gets filled by very many emails after a few days not reading mails then no problem. Most of my emails are from just a few diligent senders so reading a few and marking the rest as read is quickly done thanks to sort by sender.

Attachments are handled exactly the same way as in other email clients but with the additional benefit in sorting by sender: You can view all the attachments from one sender (if any).

The email protocols are standardised so I'd be surprised if there are any email providers which UniBox can't handle (like with any email client).

Grouping by sender can be seen as the same as messages I iMessage. Imagine the chaos it would create in that app if messages were sorted by date only! Horrible! :-)

Five (5) stars for UniBox without hesitation!
by Ratna about Unibox on September 13, 2019:
Unibox is valuable and the positive things said about it are true enough. In recent months, however, I have found that it crashes regularly and inexplicably. I have also frequently found that I have to search for unread mail to find messages that friends say they sent -- but that have not appeared in my Inbox. When servers are slow -- a constant problem in our area -- sent mail is returned to the Outbox, and must be manually re-sent.
Feel free to submit your own opinion on Unibox!

Unibox Icon Share your opinion on Unibox

/ 5
Review Summary
Unibox has currently been reviewed with 3 opinions.

In total, that's a combined rating of 4.33 out of 5 stars.

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