Slack vs Yammer comparison

Slack and Microsoft are both solutions in the Enterprise Social Software category. Slack is ranked #2 with an average rating of 8.2, while Microsoft is ranked #4 with an average rating of 7.4. Slack holds a 12.8% mindshare in ESS, compared to Microsoft’s 6.2% mindshare. Additionally, 93% of Slack users are willing to recommend the solution, compared to 77% of Microsoft users who would recommend it.

Slack

Read 76 Slack reviews

1,601 Views
1,201 Comparison Views

93% willing to recommend

Yammer

Read 64 Yammer reviews

862 Views
767 Comparison Views

77% willing to recommend

Slack

Yammer

Comparison Buyer's Guide

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Executive SummaryUpdated on Jan 23, 2025

Yammer and Slack are competitive workplace communication tools in the collaborative platform category. While Slack may have an upper hand in feature offerings and user engagement, Yammer appeals to budget-conscious businesses with its cost-effectiveness and support.

Features: Yammer provides organizational networking, allowing open communication across departments. Its integration with Microsoft 365 is valuable for users within that ecosystem. Slack offers strong channel management, real-time messaging, and extensive third-party app integrations, enhancing collaboration and agility within teams.

Room for Improvement: Yammer could improve on user engagement and activity tracking to prevent its features from remaining unused. Enhancing its global adoption strategy can also boost its presence. Meanwhile, Slack could improve its pricing model for budget-friendliness and expand native integrations to further support small businesses.

Ease of Deployment and Customer Service: Yammer integrates smoothly within Microsoft's environment, providing a familiar deployment process and strong support for Microsoft users. Slack offers an intuitive setup and comprehensive resources with responsive support. Its integration with diverse tools gives it an edge in various deployment scenarios.

Pricing and ROI: Yammer has a lower initial setup cost, suitable for organizations already investing in Microsoft subscriptions, offering significant ROI by leveraging existing Microsoft services. Although Slack may have higher upfront costs, it delivers substantial ROI by enhancing productivity and cross-platform engagement, benefiting teams that prioritize compatibility and advanced features.

To learn more, read our detailed Slack vs. Yammer Report (Updated: July 2025).

Buyer's Guide

Slack vs. Yammer

July 2025

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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

Slack

Ranking in Enterprise Social Software

2nd

Average Rating

8.4

Reviews Sentiment

7.5

Number of Reviews

Ranking in other categories

No ranking in other categories

Yammer

Ranking in Enterprise Social Software

4th

Average Rating

7.4

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of July 2025, in the Enterprise Social Software category, the mindshare of Slack is 12.8%, up from 10.0% compared to the previous year. The mindshare of Yammer is 6.2%, down from 7.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Enterprise Social Software

Featured Reviews

Awais Mehmood

Webflow Developer at Qureos

Automation features and user-friendly interface support seamless communication

Slack is very supportive in terms of communication between my colleagues and clients. While working with the reimbursement feature, I found the automation capabilities on Slack to be incredibly useful, allowing me to automate messages for specific dates or times and even to greet someone on their birthday. I haven't specifically used the channel organization feature of Slack, as I am added to channels, but I use it with Airtable, which automates notifications to a specific Slack channel when a user fills out a form on our website. In my experience, Slack is a stable product for communication, and I appreciate its automation features and integration of AI capabilities for enhancing specific functions.

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Rishi Pande

Consultant at ATOS

Cloud-based platform supports seamless collaboration but needs branding flexibility

I have transitioned to using Yammer in the cloud for about six to seven years People share their files and ideas and attend meetings in a collaborative manner. They work on specific sales-related documents. Yammer allows collaboration anywhere, anytime, on any device. Its adaptability and…

Read full review

Quotes from Members

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

Pros

"Its intuitive design makes it easy to use and understand, hence we do not have a need to spend much on educating our teams."

"The feature that I have found most valuable is communication between team members."

"Slack is a very stable product."

"The most valuable feature is that we can easily integrate different workloads and the alerts are reliable. Also because it allows us to use it as a monitoring tool sometimes."

"Nowadays, we don't need to visit an HR portal. Our marketing and human resources teams directly share details about birthdays, upcoming events, and important dates in Slack. Whether it's a training event, a company-wide gathering, or a social event, all the information is shared there. This keeps us all updated."

"I like the tool's ability to send voice mail. We can also search for conversations easily in Slack."

"Slack is a very collaborative tool that makes it easier for me to communicate with the onboarding and billing teams."

"Overall, it is a good idea as it works better than most solutions out there."

More Slack pros

"Valuable features include the integration with Microsoft Office and the fact that it is in the cloud. Also, it's quite easy to use."

"Yammer brings in the most relevant posts to the users."

"We can send out notifications and ask questions using Yammer."

"The tool allows us to post and keep track of company buzz and events without relying on email."

"Groups is the most valuable feature in Yammer."

"The posting features are valuable."

"The user interface and the way we can share and search information are the most valuable. It is very easy to use."

"The most valuable feature of this solution is the communication events."

More Yammer pros

Cons

"The reason is we are moving towards a new CRM, so we have a suitable solution to integrate with the new CRM."

"It could be more stable than one of its competitors."

"The integration with SharePoint doesn’t work properly."

"For me, the only thing I can say is that every time somebody sent me an attachment, the attachment was listed somewhere, and then I had to open the conversation and go to the individual to open it. So there is no handy repository or an easy way to quickly look at attachments. For me, that was a bit difficult."

"The solution should have less frequent updates."

"I would like to see a special feature for multiple people to collaborate on a document, working on it at the same time."

"Customization is something that Slack is lacking."

"I want a feature in the solution that will help me share documents only with the set of people that I prefer rather than all of them. I would also like the solution to have a feature similar to Microsoft SharePoint where you can group all your documents."

More Slack cons

"We tried to integrate into SharePoint, but it was not really efficient."

"Although Microsoft is working on it, having a centralized network instead of creating multiple networks based on a domain would help businesses with multiple companies or child companies."

"The product seems to just add to the complexity of using existing tools."

"Users need to be in the Acting Directory to exploit the features."

"It should have integration with multiple third-party platforms."

"It looks slightly less clean on Chrome compared to Microsoft Edge, but it's a minor difference. There is room for improvement in user experience, like positions of elements."

"The solution must be able to stream by itself, without integration, the same way that you are able to do it on Facebook Live, Instagram, etc. Streaming must be embedded into it."

"I faced some issues with Yammer's mobile app when I shifted from Android to iPhone, and it got a little bit tricky to use it on an iPhone, which took away some of my time."

More Yammer cons

Pricing and Cost Advice

"It is an expensive tool. We pay 15 to 20 USD monthly per user."

"The pricing can range up to about twenty bucks a user. You can spend a lot of money, especially if you're talking about thousands of users. Generally speaking, Slack is less expensive than Teams. Slack doesn't include all the bells and whistles that Teams does. So you can go from a $6 license in Microsoft 365 to a $50 license per user per month, and there's a lot more you can do in the $50 license."

"The solution is cheap in my country."

"We use the free version that does not have a license."

"I would rate the tool's pricing a four out of ten."

"The solution’s pricing is cheap."

"The solution is expensive."

"It is an affordable solution."

More Slack pricing and cost advice

"The pricing is not bad."

"Its cost is included in the license bundle for Microsoft."

"Yammer is a pretty cheap solution, and it's included in multiple subscriptions."

"I think that there is a need to make yearly payments towards the licensing costs of the solution."

"We get it as part of our Office 365 subscriptions, so I don't think we pay any additional cost for Yammer. It's included in the Office 365 subscriptions."

"Compared to other products like Amazon, Yammer's pricing is fine."

"I don't know about the pricing. Now that Microsoft has bought Yammer, it should be a part of our subscriptions for Office 365."

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Comparison Review

it_user8913

Developer with 51-200 employees

Aug 22, 2013

Yammer vs. SP Social in 2013

There are several discussions on SharePoint’s social strategy going on at the moment. I had some great discussions with my MVP mate Adis during Summit last week. Since #SPC12 almost every SharePoint addicted developer, it-pro, power user has reviewed Yammer. If you don’t know what Yammer is, here a…

Read full review

Top Industries

By visitors reading reviews

Educational Organization

43%

Computer Software Company

10%

Financial Services Firm

10%

University

Computer Software Company

14%

Manufacturing Company

11%

Financial Services Firm

10%

Real Estate/Law Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What do you like most about Slack?

Nowadays, we don't need to visit an HR portal. Our marketing and human resources teams directly share details about birthdays, upcoming events, and important dates in Slack. Whether it's a training...

See all answers

What is your experience regarding pricing and costs for Slack?

I am not aware of pricing, setup costs, or licensing, due to my company's partnership with Slack.

See all answers

What needs improvement with Slack?

From my perspective, a disadvantage of Slack compared to Teams is that connecting between the apps can be a bit difficult. In Teams, all applications available in the Microsoft launchpad are easily...

See all answers

What do you like most about Yammer?

We can send out notifications and ask questions using Yammer.

See all answers

What needs improvement with Yammer?

I think we should have some improvements in Yammer, similar to what we have in Facebook and others, where we can have targeted communications, so that we can filter some communications to go to a s...

See all answers

What is your primary use case for Yammer?

We create user groups in Yammer, so we use it mainly for communications and engagement. The features in Yammer that I find most beneficial for team collaboration, communication, and engagement are ...

See all answers

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Compared 12% of the time

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Product Reports

Buyer's Guide

Slack

June 2025

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Buyer's Guide

Yammer

June 2025

Download Yammer product report

Overview

Slack is where work happens. It’s a digital workspace that powers your organization — all the pieces and the people — so you can get things done.

Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams.

Slack

Yammer is an enterprise social network that allows employees,managers, executives, teams and different office branches to engage,collaborate and innovate over one interactive virtual network.

Yammer creates a social workplace that drives innovationthrough the sharing of ideas and business intelligence, boosts productivity inteams and projects, and encourages communication and connectivity betweenemployees, no matter where they are located.

Microsoft

Sample Customers

Strava, The New York Times, Spotify, Blue Bottle Coffee Company, Eventbrite, Box, Circa, Stripe

Verizon, Rakuten,Nationwide, DHL, Westfield, Telefonica, 7-Eleven, Red Robin, Intuit, eBay,Darden, Suncorp, Tyco, Xerox, and ModCloth.

Buyer's Guide

Slack vs. Yammer

July 2025

Free Report: Slack vs. Yammer

Find out what your peers are saying about Slack vs. Yammer and other solutions. Updated: July 2025.

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