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Atlassian Confluence vs Slack Business - Enterprise comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 15, 2026

Review summaries and opinions

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

ROI

Sentiment score
6.2
Users find Atlassian Confluence delivers significant ROI through cost-effectiveness, efficiency, knowledge sharing, and improved operational ease.
Sentiment score
3.7
Slack Business boosts productivity and organization, achieving 40% ROI despite moderate satisfaction and desired pricing improvements over Gmail.
 

Customer Service

Sentiment score
6.3
Atlassian Confluence's customer service is friendly, but technical support varies, with some users relying on forums or internal teams.
Sentiment score
5.8
Slack's support is praised for efficiency and effectiveness, with positive ratings despite minimal direct user interaction needed.
This team manages all queries and uses various plugins, such as Tempo for time tracking.
Manager QA at [x]cube LABS
The Atlassian technical support team is reachable through different platforms.
Project Manager at a transportation company with 10,001+ employees
We tend to focus more on Workato for support, but internally we raise service requests with the infrastructure team for any issues related to Slack.
Integration Engineer
When I connected to Slack Business - Enterprise API, tutorials and documentation were available online.
Da at hanasoft
If something was beyond their hands, then it would only be escalated to the external Slack team.
Senior Consultant at a consultancy with 10,001+ employees
 

Scalability Issues

Sentiment score
7.1
Atlassian Confluence is scalable and adaptable, though large teams may face challenges, especially in high-user cloud environments.
Sentiment score
7.2
Slack Enterprise is highly scalable, supporting both small and large teams, though the free version has limitations.
Slack is endlessly scalable.
Application Security Manager at Interact Intranet
Slack Business - Enterprise is a scalable product fitting for small businesses as well as enterprises, with no limitations on the number of users.
Da at hanasoft
Slack is not as comprehensive as Microsoft Teams in terms of scheduling and hosting meetings.
Data Engineer at BlazeClan Technologies
 

Stability Issues

Sentiment score
7.9
Atlassian Confluence is stable and reliable, with rare minor issues, improved performance, and effective communication on maintenance.
Sentiment score
7.8
Slack Business - Enterprise is stable and reliable, with minor issues and high user ratings for performance and communication.
It integrates with various systems, allowing us to manage site reliability, availability, and reliability.
Application Security Manager at Interact Intranet
Slack's stability is a perfect 10.
Webflow Developer at Qureos
I do not see glitches, latency issues, or downtime.
Da at hanasoft
 

Room For Improvement

Users seek improvements in Confluence's search, UI, integration, collaboration, content organization, pricing, and project management features.
Slack Business requires enhancements in video, integration, notifications, organization, customization, security, AI, multimedia sharing, and scheduling.
The company using Atlassian Confluence needs to have a very clear structure for where information will be organized.
GM at a real estate/law firm with 501-1,000 employees
The software does not currently have any kind of AI integration.
Manager QA at [x]cube LABS
This chart used AI to offer users the option to create it based on the data.
Sr Consultant at a tech services company with 10,001+ employees
We can also improve the creation of channels, particularly in terms of privacy, security, flexibility, and the addition of members to newly created channels.
Integration Engineer
There are a lot of integrations and custom integrations available, but I believe there are opportunities to make those integrations much easier and faster, particularly for business or non-technical people.
Co Founder at a tech consulting company with 11-50 employees
I would rate it a ten if it comes with some AI features, particularly using generative AI to produce summarization and other kinds of insights from communication in a more secure, data-secure way.
Senior Consultant at a consultancy with 10,001+ employees
 

Setup Cost

Enterprise buyers find Atlassian Confluence costly due to licensing, user volume, and plugin-related expenses, requiring strategic cost management.
Slack Business provides pricing from free to $20 per user, with paid options offering advanced features for larger teams.
It streamlines license management and renewal processes, which can otherwise lead to complications or lapses in access.
Manager QA at [x]cube LABS
Money is a factor because Atlassian Confluence is not free.
Project Manager at a transportation company with 10,001+ employees
 

Valuable Features

Atlassian Confluence integrates with Jira for seamless teamwork, offering flexible collaboration, robust organization, and customizable document management.
Slack Business - Enterprise excels with app integrations, customizable channels, and collaboration tools, surpassing competitors like Teams.
You can easily link Atlassian Confluence into a Jira ticket, which allows for a quick overview when you are in the ticket system and the ability to quickly dive deeper into the Wiki directly.
GM at a real estate/law firm with 501-1,000 employees
This tool provides a single repository for interacting with the entire team.
Sr Consultant at a tech services company with 10,001+ employees
I use Atlassian Confluence for task management and other project management tasks, such as reporting, visualization of tasks, tracking the progress of tickets, and understanding how work is progressing.
Project Manager at a transportation company with 10,001+ employees
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.
Webflow Developer at Qureos
Slack Business - Enterprise is beneficial for us primarily because the API was very beneficial, and that is the main one;
Da at hanasoft
We use the incoming webhook to push end results of automation, which makes our life easier by allowing us to easily check the status of our automation jobs through our corporate phone while in Slack itself.
Senior Consultant at a consultancy with 10,001+ employees
 

Categories and Ranking

Atlassian Confluence
Ranking in Enterprise Social Software
3rd
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
109
Ranking in other categories
Corporate Portals (Enterprise Information Portals) (2nd), Knowledge Management Software (1st)
Slack Business - Enterprise
Ranking in Enterprise Social Software
1st
Average Rating
8.4
Reviews Sentiment
5.6
Number of Reviews
83
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the Enterprise Social Software category, the mindshare of Atlassian Confluence is 5.3%, down from 10.2% compared to the previous year. The mindshare of Slack Business - Enterprise is 11.2%, down from 12.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Social Software Mindshare Distribution
ProductMindshare (%)
Slack Business - Enterprise11.2%
Atlassian Confluence5.3%
Other83.5%
Enterprise Social Software
 

Featured Reviews

Talha Hussain. - PeerSpot reviewer
Project Manager at a transportation company with 10,001+ employees
Manage projects effectively with seamless task tracking and integration, but deployment requires familiarity
We are conducting all our project management using Atlassian tools. We use Atlassian Confluence for task management, reporting, visualization of tasks, and reviewing the progress of tickets and work I use Atlassian Confluence for task management and other project management tasks, such as…
Akhil Viswam - PeerSpot reviewer
Senior Consultant at a consultancy with 10,001+ employees
Threaded collaboration has transformed how our team tracks tickets and monitors automation updates
One suggestion I would make for improving Slack Business - Enterprise is the support of multimedia such as images and videos that we can easily share through Slack. That would be great. Additionally, another thing is AI integration; if Slack has some AI capabilities to get insights about conversations or summarization, that would be a great feature. If Slack has an AI feature that can summarize a particular Slack thread and provide a summary of that, that would be a great feature for us. I would rate it a ten if it comes with some AI features, particularly using generative AI to produce summarization and other kinds of insights from communication in a more secure, data-secure way.
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Manufacturing Company
12%
Computer Software Company
7%
University
5%
Performing Arts
16%
Financial Services Firm
10%
Computer Software Company
9%
Marketing Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business39
Midsize Enterprise27
Large Enterprise52
By reviewers
Company SizeCount
Small Business57
Midsize Enterprise13
Large Enterprise23
 

Questions from the Community

What do you like most about Atlassian Confluence?
The most valuable feature of the solution stems from its document-controlling feature. In Atlassian Confluence, controlled documents cannot be edited by anyone else.
What is your experience regarding pricing and costs for Atlassian Confluence?
Money is a factor because Atlassian Confluence is not free. I need to purchase extra components when adding new projects or employees.
What needs improvement with Atlassian Confluence?
What I would like to improve in the product is definitely the Jira integration. It is hard to tell which product is lagging or lacking because I can usually find a feature on the Marketplace if I a...
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...
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.
What needs improvement with Slack?
I am uncertain how Slack Business - Enterprise can be improved. Better notification controls, improved threading, and more integrations are all good features that seem relevant.
 

Also Known As

Confluence
No data available
 

Overview

 

Sample Customers

Facebook, Skype, Microsoft, NASA, Netflix, Adobe, Bonobos, LinkedIn, Pfizer, Citi.
Strava, The New York Times, Spotify, Blue Bottle Coffee Company, Eventbrite, Box, Circa, Stripe
Find out what your peers are saying about Atlassian Confluence vs. Slack Business - Enterprise and other solutions. Updated: March 2026.
884,933 professionals have used our research since 2012.