Slack Reviews

Name: Slack
Brand: Slack
Rating: 4.2 (74 reviews)

Vendor: Slack

4.2 out of 5

74 reviews
93% willing to recommend

1,143 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 #3 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 87% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a educational organization, accounting for 86% of all views.

Helped 839,319 peers since 2012

Featured Slack reviews

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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Gonçalo Teixeira

Business Development and Product Owner at wrightia

We could see improvement in Slack by having an integrated meeting tool. Currently, we rely on third-party integration tools like Zoom to schedule meetings. It would be much more convenient to schedule meetings directly within Slack without additional integrations. It needs to have calendar and CRM integrations as well. One of the things that could be improved is when you are writing; if you press enter, it automatically sends the message. Sometimes, that happens when you want to add a paragraph inside the Slack tool. You can use the Macintosh command function to move to another part. Sometimes, it's not easy to delete messages. I'm unsure if you have a specific timeframe to delete.

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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 March 2025, the mindshare of Slack in the Enterprise Social Software category stands at 12.4%, up from 10.1% compared to the previous year, according to calculations based on PeerSpot user engagement data.

Enterprise Social Software

PeerAnalyst reports based on Slack reviews

Type	Title	Date
Category	Enterprise Social Software	Mar 3, 2025	Download
Product	Reviews, tips, and advice from real users	Mar 3, 2025	Download
Comparison	Slack vs Microsoft Teams	Mar 3, 2025	Download
Comparison	Slack vs Atlassian Confluence	Mar 3, 2025	Download
Comparison	Slack vs Yammer	Mar 3, 2025	Download

Title	Rating	Mindshare	Recommending
Atlassian Confluence	4.1	10.2%	90%	105 interviews Add to research
Microsoft Teams	4.1	12.1%	95%	163 interviews Add to research

Valuable Features

Slack's valuable features include seamless cross-platform communication, channel creation for team collaboration, and rich integration with third-party tools like IFTTT and Zapier. It offers efficient file sharing, notification management, and strong search functionality. Group and direct messaging, video calls, and screen sharing enhance team interaction. Customizable applications and plugins support workflow. The Slackbot provides useful reminders, while bots deliver focused information streams. Its intuitive interface and mobile compatibility facilitate effective interaction and task management.

"The integration with Google Calendar is easy to use and allows us to receive notifications before meetings."
"Slack's categorization of content and the availability of channels are highly valuable, as they keep communications organized."
"Slack offers the ability to make customizable applications and plugins."

Room for Improvement

Slack can improve by enhancing video call quality and integration with calendar and CRM functions. Notifications often lag, and some features are hard to navigate. Users want better organization options, a more robust profile feature, and increased document collaboration capabilities. Bots and integrations currently favor developers, leaving other user groups wanting more versatile tools. Privacy and security require attention, alongside a streamlined interface and more reliable performance across devices.

"Sometimes Slack behaves unexpectedly and shuts down without notification or support communication."
"Slack's Canvas feature could be improved in terms of its user experience."
"In Slack, there are areas for accessibility improvements."

ROI

ROI from Slack is approximately 40%. Users note it's worth the cost, finding it more efficient than Gmail for organizing content. It boosts productivity, enhancing team coordination and simplifying group work. Users are generally satisfied though, they mention room for pricing improvements, rating Slack seven out of ten on ROI. Slack's efficiency in communication and information management significantly saves time over traditional emails, leading to increased productivity and easy information retrieval.

Pricing

Slack offers a free version suitable for basic use, appealing to small teams and startups. Pricing varies based on features and team size, generally cheaper than Microsoft Teams. Monthly costs can range from $15 to $20 per user, which adds up for large teams. Users generally find the pricing reasonable but occasionally wish for more pricing tiers and features. Some find it expensive yet worthwhile, recommending the service for its overall value.

"Slack is not the cheapest solution, but that's okay."
"It is an affordable solution."
"The tool's pricing could be cheaper."

Popular Use Cases

Slack is used for internal and external communication, collaboration, and file sharing. It facilitates team coordination through channels and direct messaging. Organizations leverage its integration capabilities with tools like Google Drive, Zoom, and ServiceNow for seamless communication and task management. It supports remote work by allowing document collaboration and real-time chat. Slack is used for meetings, content project management, and vendor communication, helping teams share information and manage projects more efficiently.

Service and Support

Customers frequently do not contact Slack support because they rarely encounter issues. Those who interacted with customer service found it excellent. Technical support is generally praised for being quick and responsive when needed. Many rely on internal teams for assistance. Slack’s help docs and APIs receive positive feedback for being helpful, while Twitter support is noted for being responsive. Overall, customers seem satisfied despite not having direct experience with technical support.

Deployment

Users found Slack's initial setup to be easy and quick. Many noted it was straightforward, taking only a few minutes. Installation did not require advanced technical skills, with most participants successfully deploying it via the cloud. Team creation and managing integrations were also mentioned as areas needing some attention. Some mentioned ease of navigation and Slackbot's guidance, while a few experienced minor issues setting up privacy settings and controls to manage channels effectively.

Scalability

Slack is widely recognized for its scalability, with many praising its ability to accommodate both small groups and large organizations. Users rate its scalability highly, noting that it manages large user bases effectively, though some small teams have encountered limitations with the free version. Despite challenges in managing channels with growth, Slack is easy to expand, integrating well with numerous users, channels, and business complexities. Most organizations do not face significant scalability issues.

Stability

Slack demonstrates high reliability with minor interruptions. Users report minimal crashes or lag issues, highlighting stable performance across various platforms, particularly Linux and Windows. Some users experience occasional bugs, but these are infrequent and often related to updates or mobile versions. Ratings generally range from six to ten out of ten for stability. Limited downtime instances are reported, and the need for a stable internet connection is emphasized for optimal use.

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.