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Superhuman vs Zimbra Collaboration comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on May 21, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Superhuman
Ranking in Email Applications
14th
Average Rating
9.0
Reviews Sentiment
7.9
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Zimbra Collaboration
Ranking in Email Applications
6th
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
28
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Email Applications category, the mindshare of Superhuman is 2.7%, up from 0.5% compared to the previous year. The mindshare of Zimbra Collaboration is 7.1%, down from 8.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications Mindshare Distribution
ProductMindshare (%)
Zimbra Collaboration7.1%
Superhuman2.7%
Other90.2%
Email Applications
 

Featured Reviews

Siddharth Mallya - PeerSpot reviewer
Strategic Alliances and Business Development at Onnivation
Email triage solution that actions and handles emails based on preferences
Superhuman could be improved by being made available across a broader range of devices including Android and Windows PCs. Superhuman is also a phone app, which is available only on DiOS right now. Because it's not available on Android, you have to use Gmail for your phone, and use Superhuman for your desktop. The search feature could be improved. Currently, Gmail search is a lot more robust because you can filter results based on your requirements. Superhuman does not offer this way of searching which can make emails difficult to find.
Muhammad Talha Baig - PeerSpot reviewer
Business Analyst and Associate Project Manager at SAMI Pharmaceuticals
One of the premium features was customized rooms tailored to the collaboration needs
Zimbra's strength lies in its individuality, and it should focus on leveraging its unique features rather than trying to emulate competitors. My organization has certified Zimbra technicians, so we believe we can utilize Zimbra certification. However, I was recently informed by Zimbra that no such certification exists. I have recently completed the test kit, and after the training, I will gain access to tickets. Therefore, if any clients are experiencing issues, we have a certified technical team available to provide support 24/7. This is how we can cater to our client's needs. I recommend Zimbra to small-scale and enterprise customers. Anyone, even those with 5 users, can opt for Zimbra. Overall, I rate the solution a nine out of ten.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"It is a productivity-driven email software that is fast, increases your productivity, and cuts down the time you spend compared to traditional email software."
"It is fast, and it increases your productivity."
"The best feature about Superhuman is the fact that you don't have to manually go through your emails, as this solution segregates your email according to your preferences and how you want to categorize emails."
"The best feature about Superhuman is the fact that you don't have to manually go through your emails. This solution segregates your email according to your preferences and how you want to categorize emails."
"The web interface is powerful and easy to use."
"VMware Zimbra is an enterprise-class E-mail, calendar, and collaboration solution, built for both public and private clouds."
"The most valuable feature of Zimbra Collaboration is email functionality."
"It is the best open source collaboration suite that I know, because it provides high availability and more performance than the other solutions."
"The Zimbra Collaboration's most valuable feature is web access."
"The most valuable feature of Zimbra for our team's productivity is its efficiency in handling email communication."
"The solution is easy to implement."
"This is a good email solution and it's open-source which is great and the most important feature for us."
 

Cons

"It can have a few more integrations. As far as I know, it is being integrated with Salesforce."
"Superhuman could be improved by being made available across a broader range of devices including Android and Windows PCs."
"It can have a few more integrations."
"Superhuman could be improved by being made available across a broader range of devices including Android and Windows PCs."
"Because of the lack of this functionality, we are planning to migrate to Microsoft Exchange."
"It would be great if a group chat feature were created to allow for a team environment."
"I would like to see a Microsoft schedule function added."
"It would be great if a group chat feature were created to allow for a team environment."
"I can confidently say that Zimbra is good enough for 2,000 client users. But, at the same time, if my client needs more than that and we have two options—Zimbra or Microsoft—I'm going with Microsoft because many admins will speak to Microsoft's ability to handle that many."
"There are some bugs we found that could be fixed."
"The installation is not straightforward, it can take two days for the full implementation."
"It does have a few bugs."
 

Pricing and Cost Advice

"It is fairly expensive. They have monthly and yearly licensing options."
"I use Zimbra Collaboration's community version. We may move to the enterprise version since prices are affordable."
"There is an annual standard licensing fee to use Zimbra Collaboration and there is no other cost."
"Zimbra Collaboration is expensive, and there is no perpetual license option."
"The solution is not expensive compared to other products."
"If you choose the network edition, it is a little pricier. They have the open-source edition too which is only community supported."
"The price of the solution is low."
"We are using perpetual licenses. We have deployed it in our local data center, and we buy perpetual licenses on a per-user basis."
"Zimbra Collaboration offers a good price-to-feature ratio."
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Top Industries

By visitors reading reviews
No data available
Comms Service Provider
10%
Computer Software Company
10%
Government
7%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise3
Large Enterprise7
 

Questions from the Community

Ask a question
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How does Zimbra Collaboration compare with Microsoft Exchange?
Zimbra is a free, open source collaborative software suite. The features I like best are the ease of integration and the email, calendar, and collaboration server with web interface. In addition, I...
What needs improvement with Zimbra Collaboration?
When it comes to administration tasks like configuring specific filters or group signatures, I have to dig into the configuration since there's nothing in the graphical or web interface. The soluti...
 

Overview

 

Sample Customers

Eat24
NEC Biglobe, City of Ventura, Monterey Bay Aquarium Research Institute, Hola Publishing, BIG, Sleepwell, LaFayette College, Xmission, DNA, Ring Line, Future Group, TIGC
Find out what your peers are saying about Superhuman vs. Zimbra Collaboration and other solutions. Updated: April 2026.
893,221 professionals have used our research since 2012.