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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
10th
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 August 2026, in the Email Applications category, the mindshare of Superhuman is 2.7%, up from 0.6% compared to the previous year. The mindshare of Zimbra Collaboration is 6.2%, down from 8.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications Mindshare Distribution
ProductMindshare (%)
Zimbra Collaboration6.2%
Superhuman2.7%
Other91.1%
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 fast, and it increases your productivity."
"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."
"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."
"One of the most valuable features involves the solution's automatic backup, which I find to be pretty simple and straightforward, and obviates the need for additional software."
"One of the premium features was customized rooms tailored to the collaboration needs. Many of the clients customize features such as organization logos and scanners."
"Good email solution and it's open-source."
"I think Zimbra is more reliable and competitive than Microsoft because they offer an open-source version."
"The configuration is simple."
"It is the best open source collaboration suite that I know, because it provides high availability and more performance than the other solutions."
"Most valuable to us is the fact that it's open source, so it's possible to do a lot of customization."
"Network NG Modules are valuable to us."
 

Cons

"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. As far as I know, it is being integrated with Salesforce."
"Zimbra should provide a desktop client. Right now, we are using a web browser for accessing our emails. There should also be a desktop client."
"Zimbra Collaboration's video conferencing could be improved."
"There are some bugs we found that could be fixed."
"There are some security issues."
"Zimbra is not very stable, but it's okay."
"The solution could use more integration with third-party tools."
"File sharing permissions with Nextcloud integration need improvement."
"The support was lacking in my experience."
 

Pricing and Cost Advice

"It is fairly expensive. They have monthly and yearly licensing options."
"We pay yearly licenses for Zimbra Collaboration."
"Zimbra Collaboration offers a good price-to-feature ratio."
"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the price a four"
"We do not pay for licenses to use this solution."
"If you choose the network edition, it is a little pricier. They have the open-source edition too which is only community supported."
"The solution is competitively priced."
"We are using perpetual licenses. We have deployed it in our local data center, and we buy perpetual licenses on a per-user basis."
"When it comes to the licensing of Zimbra Collaboration, my license covers the servers and I find its terms to be much simpler than those of Microsoft Exchange."
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Top Industries

By visitors reading reviews
No data available
Outsourcing Company
10%
Computer Software Company
8%
Construction Company
8%
Comms Service Provider
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

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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...
 

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: August 2026.
908,800 professionals have used our research since 2012.