Slack Reviews

Name: Slack
Brand: Slack
Rating: 4.2 (76 reviews)

Vendor: Slack

4.2 out of 5

76 reviews
93% willing to recommend

1,068 followers

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What is Slack?

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.

Get the Slack Buyer's Guide and find out what your peers are saying about Slack, Atlassian Confluence, Microsoft Teams and more!

Slack is the #2 ranked solution in top Enterprise Social Software. PeerSpot users give Slack an average rating of 8.4 out of 10. Slack is most commonly compared to Atlassian Confluence: Slack vs Atlassian Confluence. Slack is popular among the midsize enterprise segment, accounting for 67% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a educational organization, accounting for 65% of all views.

Helped 857,028 peers since 2012

Featured Slack reviews

Diksha Hirole

Data Engineer at BlazeClan Technologies

I use Slack for internal communication between my colleagues and me at my company The integration with Google Calendar is easy to use and allows us to receive notifications before meetings. Slack is also very interactive, as it includes options for communicating with GIFs and a variety of emojis,…

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PaulButticaz

Account Manager at Eclipse Networks, Inc.

Slack has been around for a long time, and it's an industry leader. Of course, Salesforce owns Slack now and is starting to integrate into it. I have attended Slack conferences and met with product and support managers. They're an excellent organization. Choosing Slack depends on the organization's size, so you need to plan your deployment and make sure you put some controls and standards in place and not just turn it on. If you're a Slack shop, you will have to have something like a Zoom or Microsoft Teams platform for when you need to do video conferencing internally or externally. Many shops have both products, but they use Slack for collaboration, chat, and so on, and use Teams for video and audio conferences. At the end of the day, Slack is missing those capabilities, so either you're going to be a Slack/Zoom shop or you're going to be a Microsoft Teams shop. I rate Slack an eight out of ten.

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PrachiSharma

Category Manager at Cloud Software Group

We have used Microsoft Teams for collaboration. Teams is also for chats and meetings. Slack doesn’t offer meetings because Huddl gets complicated sometimes. Microsoft Teams has call features and collab. You can integrate MS Teams with your Outlook or email so you get notified of the meetings. I have to set up meetings on Google Calendar and then Slack notifies. Slack should set up meetings with Slack, and you can also take notes within those meetings. Slack is only for chats and as a collaboration tool within an organization, but it could be used to set up meetings and schedule meetings.

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Slack mindshare

As of June 2025, the mindshare of Slack in the Enterprise Social Software category stands at 13.0%, up from 9.9% compared to the previous year, according to calculations based on PeerSpot user engagement data.

Enterprise Social Software

PeerResearch reports based on Slack reviews

Type	Title	Date
Category	Enterprise Social Software	Jun 16, 2025	Download
Product	Reviews, tips, and advice from real users	Jun 16, 2025	Download
Comparison	Slack vs Microsoft Teams	Jun 16, 2025	Download
Comparison	Slack vs Atlassian Confluence	Jun 16, 2025	Download
Comparison	Slack vs Yammer	Jun 16, 2025	Download

Title	Rating	Mindshare	Recommending
Atlassian Confluence	4.1	10.6%	90%	105 interviews Add to research
Microsoft Teams	4.1	12.8%	95%	166 interviews Add to research

Valuable Features

Slack offers features such as seamless cross-platform integration, group and private chats, channel creation, third-party integrations, and file sharing. Users value its organization of communication, real-time notifications, Slackbot reminders, and app integrations like Jira and Google Calendar. With options for video calls, screen sharing, huddles, and customizable channels, it enhances collaboration. The rich user interface, strong search capabilities, and security along with a user-friendly experience are highly appreciated for efficient team communication.

"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 is very supportive in terms of communication between my colleagues and clients."
"Slack's stability is exceptional."

Room for Improvement

Slack needs enhancements in video and meeting functionalities, chat customization, integration with other tools, and improving user interface intuitiveness. Notifications can be delayed, and the application sometimes lags. Integrations could be broader, especially in CRM and calendar functionalities. File management and message organization within channels can be cumbersome. Security features, including message and document sharing, could be fortified. Accessibility and group management need better handling, and live streaming or collaborative document editing features could boost utility.

"From my perspective, a disadvantage of Slack compared to Teams is that connecting between the apps can be a bit difficult."
"I haven't experienced any noticeable return on investment since starting with Slack."
"Slack's channel and chat management could be more intuitive. Configuring chats and pinning in Teams is easier, even though Slack has these features, they are not intuitive enough to engage with."

ROI

Return on investment from Slack is approximately 40%. Users find it worth the money and relatively satisfactory despite some pricing concerns compared to Gmail. Slack enhances efficiency by organizing content, saving time over emails, and facilitating group work and information retrieval. It boosts productivity and aids collaboration, especially in release and cloud management processes. Users rate its investment return around seven out of ten.

Pricing

Enterprise buyers evaluating Slack find that the free version suffices for small teams while the paid plans offer expanded features like message history and compliance for larger teams. Pricing per user ranges from $15 to $20 monthly, and some consider it expensive though still more affordable than Microsoft Teams. Slack provides significant value without high setup costs, making it attractive for businesses seeking a balance between functionality and cost.

"It is an affordable solution."
"The tool's pricing could be cheaper."
"The solution’s pricing is cheap."

Popular Use Cases

Organizations primarily use Slack for internal and external communication. They leverage its chat and collaboration features to separate business and non-business discussions. Slack facilitates file sharing, document collaboration, and team coordination, often acting as an alternative to email. Integrations with tools like Google Drive and Zoom enhance workflows, while specific channels enable task and project management. Companies also employ Slack for video meetings, announcements, and real-time collaboration, especially for remote teams.

Service and Support

Many users have not interacted with Slack's technical support, suggesting minimal issues. When used, customer service is rated well, with support teams being responsive and helpful. Twitter support is praised for being quick and informative. Users who have interacted with Slack's technical support report positive experiences and decent response times. Some rely on internal teams, finding no need to contact Slack directly. Overall satisfaction rates customer service and support highly despite limited direct interaction.

Deployment

Users found Slack's initial setup extremely easy and quick, often requiring minimal effort. Many reported that Slack's intuitive design and guidance during the process made the installation straightforward. The setup typically involved signing up with an email, creating teams, and inviting members through auto-generated emails. Users noted low expertise requirements for deployment and administration, although certain integrations might need more skill. Slack's cloud-based nature simplified access and reduced concerns about hosting details.

Scalability

Slack is widely scalable, handling small to large teams effectively. Many users report no issues, but limitations exist in the free version. Organizations with hundreds to thousands of users find it easy to expand. The enterprise edition supports massive scalability. Ratings range from seven to ten out of ten, highlighting its versatility across varying user bases. Some report challenges with managing large channels, but it remains suitable for diverse business sizes.

Stability

Users report that Slack is generally stable, with rare outages or glitches. Many describe it as reliable, rating its stability highly. Slack performs well on multiple devices, especially on Linux, but the mobile version may occasionally freeze. While some users experience lag or crashes, these issues are infrequent. Integration reliability varies across platforms. Users emphasize the need for a robust internet connection. Insights indicate Slack's stability rate between six and ten out of ten.

These insights are based on the in-depth reviews provided by peers to help you make a better buying decision.

Download our Slack Buyer's Guide for additional reliable information.