Overview
ProductRatingMost Used ByProduct SummaryStarting Price
Microsoft Teams
Score 8.2 out of 10
N/A
Microsoft Teams combines video conferencing software with team collaboration tools. The communications platform allows MS Office users to conduct conference calls and share files via SharePoint, and join or initiate a group chat.
$4.80
per month per user
OpenX
Score 1.0 out of 10
N/A
OpenX is an ad serving platform. It is sold option as a hosted solution for can be purchased as an installed application. It allows for easy inventory management , geo-targeting of ads by country, and provides statistics for each ad placement.N/A
Zimbra
Score 6.8 out of 10
N/A
Zimbra is an email and collaboration platform and productivity suite that includes contacts, calendar, tasks, chat and file sharing, plus videoconferencing, document editing, and file storage.N/A
Pricing
Microsoft TeamsOpenXZimbra by Synacor
Editions & Modules
Microsoft Teams Essentials
$4.80
per month per user
Microsoft Teams Enterprise
$5.25
per month (paid yearly) per user
Microsoft Teams Enterprise
$5.25
per month per user
Microsoft 365 Business Basic
$7.20
per month per user
Microsoft 365 Business Standard
$15
per month per user
No answers on this topic
No answers on this topic
Offerings
Pricing Offerings
Microsoft TeamsOpenXZimbra
Free Trial
YesNoYes
Free/Freemium Version
YesNoNo
Premium Consulting/Integration Services
NoNoNo
Entry-level Setup FeeNo setup feeNo setup feeNo setup fee
Additional DetailsDiscounts are available for non profit organizations.
More Pricing Information
Community Pulse
Microsoft TeamsOpenXZimbra by Synacor
Considered Multiple Products
Microsoft Teams
Chose Microsoft Teams
Is the best application between others
Chose Microsoft Teams
I much prefer using Zoom and/or Slack in comparison to Teams. We find more of our external partners utilize Slack vs Teams as well.
Chose Microsoft Teams
Best in the market that provides a modern and comprehensive communication space.
Chose Microsoft Teams
It is better in terms of security and user friendly nature. It has far more better features than the other products.
Chose Microsoft Teams
Provide a single platform where all communication and collaboration tools are available and the user experience is consistent
Chose Microsoft Teams
It has both mobile and desktop application which are very friendly to use and the features it has are very updated on the market.

Microsoft Teams is better than Skype for business and any other chat services. Positives: easy integration with Cloud application like …
Chose Microsoft Teams
Breakout rooms are a very good feature that should be added to the platform. Google Meet ranks above Teams on the web, as it's pretty lightweight; Teams tries to do so much, making it very slow or unstable when just using the web version. Teams is superior to Zoom when it comes …
Chose Microsoft Teams
Microsoft Teams offers a much more integrated experience between their chat and video call function compared to Google Chat and Slack. Both other tools are much better for internal communications are they have simpler UI without other features. Whereas Microsoft Teams can be …
Chose Microsoft Teams
Seamless integration with different files saved on OneDrive that are automatically compatible with Microsoft Teams. Ability to create different types of groups with different security levels allowing to keep the company data secured and project an organized system and processes …
Chose Microsoft Teams
We use both Slack and Teams. We use Slack for most internal meetings and chats. We only use Teams because our larger company requires it, and many of our external customers already have it installed. If we could get customers to use Slack, we would drop Teams in a heartbeat. If …
Chose Microsoft Teams
Personally, I believe that Microsoft Teams stands tall against all of its competitors. What I value most that it brings ahead of its competitors is its options for customization; the modern look and feel of its user interface; the security that it exemplifies; and its …
Chose Microsoft Teams
I love slack and the functionality it has! However, it lets itself down that you can't have client meetings through it / need to use another app like google meet for the meetings. It just is more apps/logins needed for employees = time that could be used doing other things.

Goog…
Chose Microsoft Teams
I think Teams is closest to Slack but much more ubiquitous and also much more user friendly. I do think products like Webex and Zoom seem to have a little more preference for large scale meetings and it's based mostly on reliability and usability. In addition, Teams tie it …
Chose Microsoft Teams
Teams has been a better experience and also has less security concerns.
Chose Microsoft Teams
The advantage of using Microsoft Teams over Zoom is that Teams seamlessly works with Outlook Calendar, Outlook Email, Lists, Forms, etc. If I create a Zoom meeting, I will have to do twice as much work. Working at a Microsoft 365 organization, it is more convenient to use a …
Chose Microsoft Teams
Microsoft Teams is Microsoft's modern replacement for Skype for Business, offering significantly enhanced, integrated collaboration beyond Skype's core chat and calling with deep integration into the Microsoft 365 suite, persistent chat channels, advanced meeting features (like …
Chose Microsoft Teams
We're required to use Microsoft Teams as I assume we get it free as part of our enterprise MS Office Suite agreement.
Chose Microsoft Teams
The two products are similar. Zoom has its place in the workplace. It is different from Microsoft Teams. It is more useful for personal use in our environment. Most outside organizations and individuals will have the capability to obtain the product and connect with an entity …
Chose Microsoft Teams
Zoom was the first virtual web program I used, and I still use it for some parts of my job, but I like how chat is included with Teams. Our whole department isn't in the same building, so it is convenient to send a message instead of picking up the phone or even just sending an …
Chose Microsoft Teams
UI is so much smooth to use. As we have to use this collaboration tool daily for connecting with team members Microsoft Teams give mor smooth experience. Everything is categorized on different tab, chat, teams, calander, calls. We can easily navigate through out the …
Chose Microsoft Teams
Microsoft Teams is better than both Zoom and Google Meets to me. It seems to have the functionality of both these platforms and also that of Slack for internal messaging. It's more of a "one-stop-shop" for both these needs which makes it a handy piece of software for use in the …
OpenX
Chose OpenX
OpenX is less focused than Mopub and it has a bigger reach as it is not limited to the mobile app. Unlike Mopub that focuses on performance, OpenX comes from the branding world and is pushing into CTV and other areas of the industry more catered to traditional media agencies …
Chose OpenX
We have used Basis as a DSP but found better results in integrating OpenX with our own bidder. As for Smaato, they are focused only on in-app traffic so they are a niche player. OpenX is a bigger player for agencies that have different campaigns with multiple objectives and …
Chose OpenX
OpenX provides the same inventory you can get on any other SSPs but at lower price points (generally). However, other exchanges have put more resources on curating their inventory and customer support and in OpenX, you may find some nasty surprises in terms of ad quality and …
Chose OpenX
I use OpenX along with Sailthru because the two combined give me the full amount of reporting statistics I need to give to clients. I would say they are equal but different, and both are necessary but it would be great if all of these statistics could be contained within one …
Chose OpenX
We selected OpenX because most of the team had previous experience; it was free and we were able to self-host it.
Chose OpenX
While DART is my perferred ad server, openx is a more cost efficient product and would be my next choice.
Chose OpenX
OpenX probably falls in the middle. I've used MediaPlex, APN & Sitescout. OpenX is probably the second easiest to use.
Chose OpenX
I do not use OpenX as much as I do other tools that are out there in the market these days. It is a solid system which is definitely better than some that are out there, but it needs to become a bit more competitive in my opinion to keep up with the other leaders that are out …
Chose OpenX
Double Click, Adbrite before it became sitescout. We chose Open X because it was easy to integrate into the back end of our site and we liked the reports it provided and the ease of use. Double Click is a Google company, and frankly, while they are good at some technology, …
Chose OpenX
We've used Double Click and both products perform equally well.
Chose OpenX
If OpenX wants to be used or adopted by more desks or RTB partners than it needs to provide the transparency and premium inventory that a AppNexus, ADX and Rubicon provide. This goes for the open exchange and private marketplaces.
Chose OpenX
The ad sales and ad operations team had been utilizing DoubleClick/DART previous to the migration to OpenX. One of the driving factors for the migration to OpenX was to lower costs associated with utilizing a third party such as the DoubleClick/DART system. The ease of use for …
Chose OpenX
I was not responsible for the selection decision, that was done before I joined the company. However, it was the low cost and adaptability that custom integration allowed that made it really the only solution that we knew of.
Zimbra
Chose Zimbra
We used Zimbra Email & Collaboration in two scenarios: first, on-premise with the open-source version to save costs, especially since solutions like Office 365 or Google Workspace were not as mature or widespread at the time. Later, we benefited from cost advantages with Zimbra …
Chose Zimbra
There are a lot of features that Zimbra Email & Collaboration has that gmail and m365 have. You can chat within your team members with Zimbra Email & Collaboration. The issue that we have not been able to figure out though is mobility of Zimbra Email & Collaboration. You can …
Chose Zimbra
We chose Zimbra because Zoho Mail is too pricey with less-functionality than Zimbra. Zoho's UI is better, but we need more than just UI, we need many features that Zimbra has. G Suite is the best for team collaboration of course, but because of the price and our needs we …
Chose Zimbra
Zimbra is undeniably a complete package and offers many practical tools, in addition to the knowledge that the company has. It is a great acquisition for a company that will soon see a significant change in terms of organization, deadlines, efficiency, and more. It has an …
Chose Zimbra
Zimbra is a more specialized software designed for our company and its needs. The software was customized to represent our colors and project our brand, what other companies do not have. With Zimbra, we have a private network of only employees which allows us to confidentiality …
Chose Zimbra
Zimbra is a significantly cheaper option than one of the Microsoft solutions, such as Exchange. It is able to run in a free environment, as it is in the case of Linux. It offers the advantages of a powerful mail manager, such as indexed searches and the integration of contacts …
Chose Zimbra
We selected Zimbra because it has a lower cost in the market, offers more development features for its open source, has a very easy to use interface and adjusts to the needs of the company.
Chose Zimbra
Zimbra provides a robust and reliable software that delivers what is promised. We have tested Zimbra in a pilot project before deploying it in production. Incidents and crashes are rare and you have tools to recover it if necessary. Initially we had a contract with support to …
Chose Zimbra
  • We were originally a Groupwise shop before changing to Zimbra in 2008. Zimbra, from an end-user standpoint, pricing, system administration, and management is a far better system.
  • We use Google Apps for our students. We did not find it to be suitable for faculty and staff due to …
Features
Microsoft TeamsOpenXZimbra by Synacor
Project Management
Comparison of Project Management features of Product A and Product B
Microsoft Teams
8.1
Ratings
5% above category average
OpenX
-
Ratings
Zimbra by Synacor
9.0
Ratings
15% above category average
Task Management8.10 Ratings00 Ratings9.80 Ratings
Gantt Charts8.00 Ratings00 Ratings8.10 Ratings
Scheduling8.20 Ratings00 Ratings9.80 Ratings
Workflow Automation8.40 Ratings00 Ratings7.20 Ratings
Mobile Access8.20 Ratings00 Ratings9.70 Ratings
Search7.60 Ratings00 Ratings9.80 Ratings
Visual planning tools8.50 Ratings00 Ratings8.50 Ratings
Communication
Comparison of Communication features of Product A and Product B
Microsoft Teams
8.0
Ratings
0% above category average
OpenX
-
Ratings
Zimbra by Synacor
6.6
Ratings
19% below category average
Chat8.90 Ratings00 Ratings7.00 Ratings
Notifications8.40 Ratings00 Ratings5.20 Ratings
Discussions8.60 Ratings00 Ratings2.00 Ratings
Surveys8.10 Ratings00 Ratings7.70 Ratings
Internal knowledgebase8.60 Ratings00 Ratings7.70 Ratings
Integrates with GoToMeeting6.50 Ratings00 Ratings7.60 Ratings
Integrates with Gmail and Google Hangouts5.70 Ratings00 Ratings8.00 Ratings
Integrates with Outlook9.10 Ratings00 Ratings7.50 Ratings
File Sharing & Management
Comparison of File Sharing & Management features of Product A and Product B
Microsoft Teams
8.2
Ratings
2% above category average
OpenX
-
Ratings
Zimbra by Synacor
5.6
Ratings
36% below category average
Versioning8.60 Ratings00 Ratings5.10 Ratings
Video files8.30 Ratings00 Ratings1.30 Ratings
Audio files8.70 Ratings00 Ratings1.30 Ratings
Document collaboration8.80 Ratings00 Ratings5.10 Ratings
Access control8.60 Ratings00 Ratings8.70 Ratings
Advanced security features8.50 Ratings00 Ratings9.70 Ratings
Integrates with Google Drive5.30 Ratings00 Ratings6.60 Ratings
Device sync8.50 Ratings00 Ratings6.60 Ratings
Ad Network Integration
Comparison of Ad Network Integration features of Product A and Product B
Microsoft Teams
-
Ratings
OpenX
6.6
Ratings
11% below category average
Zimbra by Synacor
-
Ratings
Data Transfer00 Ratings6.50 Ratings00 Ratings
DSP integration00 Ratings6.80 Ratings00 Ratings
Ad Campaigns
Comparison of Ad Campaigns features of Product A and Product B
Microsoft Teams
-
Ratings
OpenX
7.0
Ratings
11% below category average
Zimbra by Synacor
-
Ratings
Ad campaign creation00 Ratings6.80 Ratings00 Ratings
Ad deployment00 Ratings6.60 Ratings00 Ratings
Display advertising00 Ratings7.30 Ratings00 Ratings
Ad display and retargeting segmentation00 Ratings6.50 Ratings00 Ratings
Sequence targeting00 Ratings7.50 Ratings00 Ratings
Ad Reporting & Analytics
Comparison of Ad Reporting & Analytics features of Product A and Product B
Microsoft Teams
-
Ratings
OpenX
6.6
Ratings
16% below category average
Zimbra by Synacor
-
Ratings
Ad dashboards00 Ratings5.90 Ratings00 Ratings
Ad performance reports00 Ratings6.00 Ratings00 Ratings
Ad conversion tracking00 Ratings6.10 Ratings00 Ratings
Ad attribution reporting00 Ratings7.00 Ratings00 Ratings
Cross-channel ad management00 Ratings7.20 Ratings00 Ratings
Ad forecasting and optimization00 Ratings7.60 Ratings00 Ratings
Best Alternatives
Microsoft TeamsOpenXZimbra by Synacor
Small Businesses
Stackby
Stackby
Score 8.9 out of 10

No answers on this topic

Stackby
Stackby
Score 8.9 out of 10
Medium-sized Companies
Troop Messenger
Troop Messenger
Score 9.8 out of 10

No answers on this topic

Troop Messenger
Troop Messenger
Score 9.8 out of 10
Enterprises
HCL Connections
HCL Connections
Score 9.0 out of 10

No answers on this topic

HCL Connections
HCL Connections
Score 9.0 out of 10
All AlternativesView all alternativesView all alternativesView all alternatives
User Ratings
Microsoft TeamsOpenXZimbra by Synacor
Likelihood to Recommend
8.6
(0 ratings)
7.3
(0 ratings)
7.9
(0 ratings)
Likelihood to Renew
9.0
(0 ratings)
7.0
(0 ratings)
-
(0 ratings)
Usability
8.7
(0 ratings)
9.0
(0 ratings)
7.0
(0 ratings)
Availability
9.0
(0 ratings)
-
(0 ratings)
-
(0 ratings)
Performance
8.0
(0 ratings)
-
(0 ratings)
-
(0 ratings)
Support Rating
8.0
(0 ratings)
10.0
(0 ratings)
-
(0 ratings)
Implementation Rating
10.0
(0 ratings)
-
(0 ratings)
8.0
(0 ratings)
Product Scalability
10.0
(0 ratings)
-
(0 ratings)
-
(0 ratings)
User Testimonials
Microsoft TeamsOpenXZimbra by Synacor
Likelihood to Recommend
It's amazing as a daily driver for team communication, and document search/store. Also, if you're doing a lot of LONG meetings and have trouble remembering details, the AI summarization is amazing and convenient. It just works. I'm not saying I always do this, of course, but if I need to 'skim' instead of really digging into every detail from a meeting, the AI-generated summary is generally good enough that I can get away with it.
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This is a wonderful product that is well supported and fully backed by OpenX. If you have green staff that require some training to get their foot in the door for basic ad management, this is a great tool. We've never utilized the OpenX ad market so I can't speak to the quality of the ads in that open market, but for in-house ads in complex networks with its targeting tools, this software would be more than suitable to fulfill your needs.
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I consider Zimbra Email & Collaboration a viable alternative to the major American cloud email platforms. In a scenario where data protection and privacy are critical, especially in an on-premise environment, Zimbra is a very suitable solution. It is also capable of offering a comprehensive set of tools and additional features (tasks, calendars, contacts, briefcase) in an integrated manner.
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Pros
  • Makes communication and collaboration easier through Chat.
  • Lets us personalize and humanize face-to-face interactions through Meetings.
  • Helps me effectively plan out my day through Calendar.
  • Enables us to safely store and access our information through OneDrive.
  • Simplifies calls and voice communication.
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  • When it comes to RTB and spending on the open exchange market, the number one reason why we spend in one exchange over another is simple performance
  • When Open X doesn't perform which it tends not to, we have to shut that exchange off. This exchange tends to not perform at a CPA or CPC KPI and tends to not have the safest sites either.
  • Because I only use Open X as an exchange which I tap into from a DSP I can't speak to it's other capabilities.
Read full review
  • The management of incremental mail backup. It is very simple, and the administrators of my company recover information quickly.
  • The management of the distribution lists is structured. This allows easy distribution of mass information.
  • The web application is very complete and intuitive.
Read full review
Cons
  • The webinars feature has some missing functionally such as the ability for all users to use the Q&A feature (only those with a Microsoft Teams account can use it now), the ability to upload documents for attendees to easily access and download, and the ability for presenters and organizers to easily chat amongst themselves throughout the webinar.
  • The "Channels" organization hierarchy could be more clear. If you have several channels set up, it can get clunky and hard to find the specific channel you are looking for.
  • The MS Planner tool lacks functionality and organization. You cannot assign more than one person to a task and it's confusing when you try to share tasks with people - it would be nice if they were automatically added to someone's calendar.
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  • Propagation could be improved; ad units that need to go live immediately could take up to 45 minutes to propagate.
  • Over-complexity can be confusing. There are multiple tiers before assigning ad units per order and it seems unnecessary.
  • Real-time reporting or a status dashboard would be great.
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  • User web interface could be more friendly, but it is enough for daily use. It could be renewed and has to consider some usability concerns. Improving usability would significantly improve users' satisfaction.
  • Message backup recovery is not a simple activity.
  • As an administrator, some of the features work better using the command-line interface.
  • The webclient uses ajax requests in almost every event. Because of that you may need a fast internet connection to have a good experience. You can switch to HTML version but it will limit what you can do.
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Likelihood to Renew
Microsoft Teams is included with our Office 365 subscription and we have no intention of migrating off of Office 365 and Microsoft products. Since Microsoft Teams is included for free with our Office 365 subscription, and since we enjoy all the features, benefits, and functionality, there is no question that our team will continue to use the product
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I would renew use of OpenX as it is a solid ad serving platform that is easy to use, install, and maintain with some great advanced features that give more control to publishers ad ops teams large or small while reducing the costs associated with managing, serving, and delivering ads from third party vendors.
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Usability
I find that the chat function itself is quite clean, but once you incorporate the rest of the UI it becomes quite clunky. It feels as though there's too many features in one place, and that leads to it becoming convoluted and a little bit tedious to use. Due to that notifications can get missed which can lead to some tricky situations when working. I do find that it is easy to pick up though and help is readily available with a good support centre.
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I was given the system to use as part of setting up a whole new site from scratch in less than 2 months, with a large number of specialty hub pages to run ads on and lots of content I needed to run disease specific ads on. The system was easy for me to learn on the fly in a very compressed time frame. I would have loved more chance to really dig in under the hood to see all that it could do, but given how fast I had to work, I got everything up and running and looking great. And I did it ahead of my launch deadline too. My only reservation might be for people who are not as patient as I am in picking things up, or as hands on. Customer service was great if I needed them, and a quick start guide with the essentials would be ideal for those people.
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The web usability of the solution is adequate, with all functions integrated into a single interface. However, it is important to note that in the desktop environment, it lacks its own application and relies on ActiveSync synchronization with reference solutions like Outlook or Thunderbird. Some features, such as the briefcase, will be excluded. The same happens on smartphones.It is also common for competing solutions to include integrated chat or video call tools, which Zimbra lacks. These shortcomings are among the most frequently requested by users.
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Reliability and Availability
Rare, but outages do happen
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No answers on this topic
Performance
Sometimes about once a week I get a message that says "Sorry, there seems to be something wrong". But it goes away in a few minutes.
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No answers on this topic
Support Rating
The overall support provided by Microsoft for Microsoft Teams has been quite good but there is still some room for improvements. Microsoft needs to proactively work on fixing the open bugs in order to provide a seamless experience to the users. But over the service and experience provided by the Microsoft team have been quite satisfactory.
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They went above and beyond without ever asking for additional money and we met our launch date and immediately started to meet and even surpass our business goals. Nothing was too much trouble, which really stood out compared to other companies I had and was at that time also working with. Customer service can really make or break any business; if i expect my staff to give good customer service, I expect to get it too, and Open X gave it.
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No answers on this topic
Implementation Rating
I find everything I need for my day-to-day work.
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No answers on this topic
Overall, we were satisfied with the implementation. We perhaps should have spent more time consulting with Zimbra or others regarding best practices but as we got to know the system better we were able to make changes relatively easily after the fact.
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Alternatives Considered
Breakout rooms are a very good feature that should be added to the platform. Google Meet ranks above Teams on the web, as it's pretty lightweight; Teams tries to do so much, making it very slow or unstable when just using the web version. Teams is superior to Zoom when it comes to chat and integration with other platforms.
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Double Click, Adbrite before it became sitescout. We chose Open X because it was easy to integrate into the back end of our site and we liked the reports it provided and the ease of use. Double Click is a Google company, and frankly, while they are good at some technology, their products can be clunky failures AND we are not so sure we want to give them so much data about the inner workings of our business and keyword universe
Read full review
  • We were originally a Groupwise shop before changing to Zimbra in 2008. Zimbra, from an end-user standpoint, pricing, system administration, and management is a far better system.
  • We use Google Apps for our students. We did not find it to be suitable for faculty and staff due to its lack of shared accounts.
  • We are moving from Zimbra to Office 365. Office 365 offers just about all that Zimbra had, though its web interface is inferior to that of Zimbra. It does offer us greatly reduced costs though, and high availability. If Zimbra were to have a fully HA environment, we may have stayed with them.
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Scalability
It does not appear to have a limit to how many teams and employees we can have using it
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No answers on this topic
No answers on this topic
Return on Investment
  • Allow smooth communication with team members, clients, and other internal and external partners globally.
  • Provide strong security features to ensure secure communication and confidence when sharing sensitive information during our meetings and group calls.
  • When working on collaborative projects, we can work together in the same document in real time.
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  • OpenX made it easy to manage online advertising. At the time I used the product I was the lead developer in charge of implementing the solution but quickly was put into the role of managing the traffic and training other users. It was really easy for a technical user to become a traffic manager. Getting other users trained and up to speed was very efficient.
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  • Improved internal communication and dissemination and distribution of messages and corporate objectives.
  • The creation of an internal network of employees is something that gives us security and confidence.
  • Having a private and exclusive messaging system differentiates us from the competition and from other companies.
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ScreenShots

Zimbra Screenshots

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