Overview
ProductRatingMost Used ByProduct SummaryStarting Price
Microsoft Yammer
Score 6.9 out of 10
N/A
Yammer is used for private communication within organizations or between organizational members and pre-designated groups, making it an example of enterprise social software. It originally launched as an enterprise microblogging service and now has applications on several different operating systems and devices. The company was acquired by Microsoft in 2012.N/A
Slack
Score 9.0 out of 10
N/A
Slack is a group messaging or team collaboration app that aims to simplify communication for businesses. Features include open discussions, private groups, and direct messaging, as well as deep contextual search and message archiving, and file sharing. Slack integrates with a number of other tools, such as MailChimp, Dropbox, and Google Drive. Slack was acquired by Salesforce in December 2020. The product is free to use, and also has paid plans with more features and greater controls. The…
$0
per month per user
Pricing
Microsoft YammerSlack
Editions & Modules
No answers on this topic
Free
$0
Pro
$7.25*
per month per user
Business+
$12.50*
per month per user
Enterprise
Contact Sales
Offerings
Pricing Offerings
Microsoft YammerSlack
Free Trial
NoYes
Free/Freemium Version
NoYes
Premium Consulting/Integration Services
NoNo
Entry-level Setup FeeNo setup feeNo setup fee
Additional Details*Per active user, per month, when paying once a year. Pro is $8.75 USD per active user when paying month to month. Business+ is $15.00 USD per active user when paying month to month.
More Pricing Information
Community Pulse
Microsoft YammerSlack
Considered Both Products
Microsoft Yammer
Chose Microsoft Yammer
Yammer seemed like a lite powered Slack that was just coming into its prime. Still a ways to go, but integration with Office365 was great.
Chose Microsoft Yammer
Each app serves a different purpose even though there may be some overlap. Yammer is a little like Facebook and one can create, join, or find communities, and many people are familiar with Facebook. Slack works with channels and there are some people who are not as familiar …
Chose Microsoft Yammer
Yammer is very rudimentary as a broadcast tool and team notification. I has been surpassed in functionality and usefulness by all the other apps listed.
Chose Microsoft Yammer
Yammer created very important and reliable social network across the whole company. We used to have MS SharePoint, but since Yammer became available via Office 365 we moved to Yammer.

IBM Connections is difficult to maintain + costs are higher.
Chose Microsoft Yammer
Basically, all these applications have the same functions, to share jobs and projects in real time and have functioned very similar to social networks that are used daily such as Facebook, Instagram, and others. Yammer was chosen because it is very easy to use, fast and safe.
Chose Microsoft Yammer
Yammer, although not as strong for project management, has been a great tool to help our teams collaborate and build camaraderie across the organization.
Slack
Chose Slack
Slack is the best office communications platform by far. It's lacking in the full integration of voice and video but the simplicity and ease of use for chat it is second to none.
Chose Slack
None of the competition coming from the Microsoft or Cisco provide the user experience of today's consumerized social media. Slack, on the other hand, is fully on par with the best and most known social media applications that consumers use. Consumerization of IT shows here as …
Chose Slack
Well we get Yammer with the Office 365 pack. So, Yammer is paid for and integrates well with Office. MS Office 365 does not have the type of ridiculous service interruptions that Slack seems to experience. Yammer does all the same stuff but without the bad user interface. I did …
Chose Slack
Overall I think it has the best collection of features in an easy to use interface that feels familiar to most people. I believe it is the only one that allows you to be a part of multiple teams and toggle between that with a simple click, which is great for our organization.
Top Pros

No answers on this topic

Top Cons

No answers on this topic

Features
Microsoft YammerSlack
Project Management
Comparison of Project Management features of Product A and Product B
Microsoft Yammer
7.8
40 Ratings
1% below category average
Slack
7.9
397 Ratings
0% above category average
Task Management8.024 Ratings7.8250 Ratings
Gantt Charts8.012 Ratings7.061 Ratings
Scheduling8.318 Ratings7.8207 Ratings
Workflow Automation8.020 Ratings7.9225 Ratings
Mobile Access7.238 Ratings9.2384 Ratings
Search7.338 Ratings8.2382 Ratings
Visual planning tools8.022 Ratings7.3150 Ratings
Communication
Comparison of Communication features of Product A and Product B
Microsoft Yammer
7.9
43 Ratings
2% below category average
Slack
8.6
407 Ratings
7% above category average
Chat8.539 Ratings9.7407 Ratings
Notifications8.343 Ratings8.9403 Ratings
Discussions9.142 Ratings9.1394 Ratings
Surveys7.033 Ratings8.2247 Ratings
Internal knowledgebase7.632 Ratings7.7246 Ratings
Integrates with GoToMeeting7.314 Ratings8.5111 Ratings
Integrates with Gmail and Google Hangouts6.613 Ratings8.5184 Ratings
Integrates with Outlook8.432 Ratings8.4122 Ratings
File Sharing & Management
Comparison of File Sharing & Management features of Product A and Product B
Microsoft Yammer
8.4
36 Ratings
4% above category average
Slack
8.4
381 Ratings
4% above category average
Versioning7.025 Ratings8.0182 Ratings
Video files8.631 Ratings8.5337 Ratings
Audio files9.029 Ratings8.5332 Ratings
Document collaboration8.830 Ratings8.1267 Ratings
Access control8.030 Ratings8.2247 Ratings
Advanced security features8.627 Ratings8.1211 Ratings
Integrates with Google Drive8.014 Ratings8.8213 Ratings
Device sync9.023 Ratings9.1270 Ratings
Best Alternatives
Microsoft YammerSlack
Small Businesses
Stackby
Stackby
Score 9.6 out of 10
Stackby
Stackby
Score 9.6 out of 10
Medium-sized Companies
Troop Messenger
Troop Messenger
Score 9.7 out of 10
Troop Messenger
Troop Messenger
Score 9.7 out of 10
Enterprises
HCL Connections
HCL Connections
Score 9.0 out of 10
HCL Connections
HCL Connections
Score 9.0 out of 10
All AlternativesView all alternativesView all alternatives
User Ratings
Microsoft YammerSlack
Likelihood to Recommend
7.9
(53 ratings)
9.3
(407 ratings)
Likelihood to Renew
6.9
(10 ratings)
9.4
(20 ratings)
Usability
9.0
(3 ratings)
9.9
(29 ratings)
Availability
8.0
(1 ratings)
-
(0 ratings)
Performance
9.0
(1 ratings)
-
(0 ratings)
Support Rating
7.0
(12 ratings)
1.0
(65 ratings)
Online Training
7.0
(2 ratings)
-
(0 ratings)
Implementation Rating
8.0
(1 ratings)
10.0
(2 ratings)
User Testimonials
Microsoft YammerSlack
Likelihood to Recommend
Microsoft
Yammer is great when you have a company culture that encourages friendly collaboration and communication. It can be a great supplement (but certainly not a substitute) for bonding and sharing ideas and thoughts. Certain channels can be really successful, too, like a channel where people can post dog pictures or something fun like that!
Read full review
Salesforce
I would definitely recommend Slack to everyone who needs a messaging platform for work. The thing that I most appreciate on Slack is the possibility of talking to my coworkers without using my personal number or personal apps. This way, I can separate what is work and what is not. Slack even has the option to mute notifications after work hours. I'm able to keep track of every project and discuss them in an easy and fast way. Another great thing is that you can keep and check the history of channels and groups, this way the discussions are never lost when someone joins the project in the middle of it or someone leaves, the history is always there. The only thing that bothers me in the platform is the system of threads, where you can easily lose the messages cause they look kind of hidden. If you have multiple subjects with someone and the person only responds in threads, it's very common to lose their messages.
Read full review
Pros
Microsoft
  • Providing a platform for social news in the company where "bottom up" topics can percolate freely across department
  • Social networking across the company where folks can divide their work into topics instead of teams
  • Basic collaboration within a group including document sharing with ability to pin documents to a team
Read full review
Salesforce
  • Automated Notifications: Integrated tools like Jira, Trello, and Google Drive to receive automated notifications and updates directly in Slack, improving visibility and efficiency within the team
  • Message Encryption: Slack encrypts the messages in transit and at rest, ensuring the security and privacy of sensitive information and making our IT team's life much easier.
  • Reminder Bots: We used Slackbot to set reminders, automate follow-up actions, and provided information based on user queries.
  • SurveyMonkey Integration: Integrated our Slack with SurveyMonkey to distribute surveys and collect feedback from team members, streamlining the feedback-gathering process which was a huge support to our HR and Admin team.
Read full review
Cons
Microsoft
  • Although the social enterprise network works very well, there is room for some slight improvement - such as the ability to attract users. By being part of the Microsoft Office Suite, it is offered as an "add-on" and many overlook it and see it as unnecessary at first. It would be smart for Microsoft to sell it as its own product so it could gather more popularity as a "social network".
  • Giving an option to filter results could be better as well as giving an option to turn off the "recent activity" bar on the home page.
Read full review
Salesforce
  • I do wish Slack made it easier to see your DM's. They added a feature that moves them around based on who is active, but if you're trying to find a thread with a teammate who isn't active on Slack at that moment, it's a lot harder to find.
  • I also think they could integrate with AI more and have apps for AI.
  • Lastly, it would be awesome if it would tell you when a coworker was last active. It would be nice to keep track of when people are logging off.
Read full review
Likelihood to Renew
Microsoft
Microsoft is dedicated to continual improvement on Yammer. They realize the value that Yammer brings to the table with their clients. In the short time that we have had Yammer implemented, we are just now beginning to see the strong impact it has on becoming more effective and efficient around collaboration.
Read full review
Salesforce
As useful as Slack has become within our company, I feel fairly confident we will continue to use Slack as a communication tool. They continue to improve their software and add value to its use within our office. Customer service delivers, which is an absolute must. Looking forward to how they improve.
Read full review
Usability
Microsoft
Overall easy to use and intuitive, although limited in the possibility to personalize layout and look & feel of a site. Some functionalities are not easy to use, like document editing, but some others are quick and effective (posts and tagging above all). Performance and responsiveness of the Yammer site is typically acceptable, in my experience.
Read full review
Salesforce
As long as you use the basic chat features and nothing more, it really is super easy to understand and use. Once you want to take advantage of some of the more advanced features and capabilities, that's when things get complicated. Anyone who has use SMS or a chat program before will be able to figure out the basics though, so rolling this out should be relatively straightforward and not required exhaustive training. Teaching chat etiquette is something else though.
Read full review
Reliability and Availability
Microsoft
Very available
Read full review
Salesforce
No answers on this topic
Performance
Microsoft
It's a simple product but it does provide value.
Read full review
Salesforce
No answers on this topic
Support Rating
Microsoft
We have never had to use the support for Yammer. The tool works well and we have not come across any bugs. User Interface is simple and easy to use, similar to other forum type products, thereby removing the need for any extensive training. Team members are invited in and immediately are able to start using the tool.
Read full review
Salesforce
I've never had to contact support for Slack which is a great testament to its ease and use. Adding people outside of the organization takes a little getting used to, but ultimately allows for greater collaboration between FTE and contractors. There is no clear alternative to this software, so it's the best we can do for now.
Read full review
Online Training
Microsoft
The training that Microsoft provides is very generic training for Yammer. I like the fact the training is short and easy to understand
Read full review
Salesforce
No answers on this topic
Implementation Rating
Microsoft
We organically implemented the product
Read full review
Salesforce
It always helps if you communicate to everyone in the organization how important it is to drop whatever other chat tools they are using and jump quickly to Slack. They will all fall in love with it.
Read full review
Alternatives Considered
Microsoft
Our team briefly used Salesforce.com's Chatter product before switching over to Yammer in 2012. While Chatter is essentially the same product as Yammer, it left much to be desired. Chatter's design was (and remains) clunky and difficult to navigate. Yammer is a simple, easy-to-use product that offers similar functionality as Salesforce's Chatter.
Read full review
Salesforce
Slack is the superior offering for what we do and who we communicate with. The other programs offer basic features, but Slack continues to innovate and is business-first, which is very helpful for our small team. The feature set and integrations are better in Slack than other offerings we have evaluated
Read full review
Return on Investment
Microsoft
  • My company is pleased with the positive impact Yammer has created departmentally and on an individual basis with work flow efficiency.
  • Adversely, most old and new employees are more familiar with SharePoint, causing the company to pay for training for all current and incoming employees.
  • As Yammer becomes more widely used, the need for training may diminish, which is where we will see our return on investment, as the product clearly provides a more effective form of file sharing and communication between employees and their department.
Read full review
Salesforce
  • We have a story when one guy mentioned in a our site group with tag @here about his wedding, he didnt know that @here works only for people who are online, so most of the people missed the message, slack is not the best place to update about the important things
  • Slack helps to solve and be updated if you have an internal problems and you want to know how the solving goes
Read full review
ScreenShots