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

1,201 Views
484 Comparison Views

93% willing to recommend

Yammer

Read 64 Yammer reviews

767 Views
294 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: June 2025).

Buyer's Guide

Slack vs. Yammer

June 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

"The portal is at its best version now."

"The most valuable feature is the screen sharing, which works well."

"The solution is scalable."

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

"We use Slack for general communication, conference calls, and sharing screens because we have people working from different countries."

"Slack's categorization of content and the availability of channels are highly valuable, as they keep communications organized."

"What I find valuable in Slack is that the interface is very attractive and it's easy for any new person to adapt to."

"Slack provides very fast communication."

More Slack pros

"The initial setup was simple and straightforward."

"The posting features are valuable."

"People share their files and ideas and attend meetings in a collaborative manner."

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

"The product's initial setup phase was straightforward."

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

"Its most valuable features are the storyline and communities."

"The integration with Teams is the biggest value for us. In fact, it has only become more valuable now that it has integration with Teams. Teams allows you to stream, so that's good."

More Yammer pros

Cons

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

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

"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."

"Slack's channel and chat management could be more intuitive."

"It is difficult to navigate the tool when I log in to two devices and start a video call."

"The tool should be able to fetch a conversation when we search for it even if it is in the thread."

"I would like the text in chat to be more customizable."

"The solution’s initial setup is not very easy."

More Slack cons

"I would like to see a fancier user interface. That is one of the weak points of Yammer."

"Yammer has very limited features."

"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."

"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 specific subset of that group, not to everybody."

"The permissions are a little bit over-complicated."

"Yammer should be able to integrate with Microsoft products, such as Outlook."

"The solution's feature for sharing could be better."

"This solution would be improved if it was well integrated with other communication applications."

More Yammer cons

Pricing and Cost Advice

"The solution’s pricing is cheap."

"Slack is definitely worth the money."

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

"The solution is expensive."

"The solution is cheap in my country."

"It is less expensive than one of its competitors."

"It's on the more expensive side."

"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."

More Slack pricing and cost advice

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

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

"The pricing is not bad."

"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."

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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

56%

Computer Software Company

10%

Financial Services Firm

University

Computer Software Company

14%

Manufacturing Company

11%

Financial Services Firm

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?

Sometimes Slack behaves unexpectedly and shuts down without notification or support communication. There is a need to add a call group feature to facilitate scheduling and conducting meetings withi...

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

Comparisons

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Compared 16% of the time

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Compared 15% of the time

ChatWork vs Slack

Compared 13% of the time

Atlassian Confluence vs Slack

Compared 11% of the time

Quip vs Slack

Compared 10% of the time

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Workplace by Facebook vs Yammer

Compared 37% of the time

SAP Jam vs Yammer

Compared 27% of the time

Chatter vs Yammer

Compared 24% of the time

Microsoft Teams vs Yammer

Compared 12% of the time

More Yammer Competitors

Product Reports

Buyer's Guide

Slack

June 2025

Download Slack product report

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

June 2025

Free Report: Slack vs. Yammer

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

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