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Atlassian Confluence vs Slack Business - Enterprise comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 9, 2025

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
6.5
Atlassian Confluence is a cost-effective tool improving time efficiency, knowledge sharing, and quality of life for users.
Sentiment score
3.9
Slack Business boosts productivity and communication, offering 40% ROI, though users desire pricing improvements; generally rated seven out of ten.
 

Customer Service

Sentiment score
6.5
Atlassian Confluence support is responsive but limited, with users often seeking help elsewhere due to cost and complexity issues.
Sentiment score
6.0
Slack Business - Enterprise support is praised for responsiveness and helpfulness, with strong documentation and positive user experiences.
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 scales efficiently for diverse organizations, though cloud performance and cost concerns exist; integration boosts flexibility.
Sentiment score
7.3
Slack Business - Enterprise is scalable for small to large teams, though large user bases may require more resources.
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 reliable and stable, despite occasional server-related disruptions, with performance improving consistently over time.
Sentiment score
7.8
Slack Enterprise is stable and dependable, with occasional lag and rare outages mostly due to updates or network issues.
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

Atlassian Confluence faces criticism for poor search, inadequate editing features, inflexible pricing, and scalability issues for large enterprises.
Slack Business Enterprise seeks improved video calls, scheduling, integration, security, mobile functionality, and enhanced AI and collaboration features.
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

Atlassian Confluence costs vary by users and add-ons, potentially increasing annually, with complex licensing affecting price perception.
Enterprise users generally find Slack's pricing reasonable, though some consider it expensive compared to free options for small 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 enhances collaboration with customizable templates, content sharing, and secure integration with Jira and external tools.
Slack Business - Enterprise boosts productivity through seamless integration, intuitive interface, and efficient communication with customizable features and automation.
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
6.9
Number of Reviews
107
Ranking in other categories
Corporate Portals (Enterprise Information Portals) (2nd), Knowledge Management Software (1st)
Slack Business - Enterprise
Ranking in Enterprise Social Software
2nd
Average Rating
8.4
Reviews Sentiment
5.9
Number of Reviews
82
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Enterprise Social Software category, the mindshare of Atlassian Confluence is 5.8%, down from 10.0% compared to the previous year. The mindshare of Slack Business - Enterprise is 11.5%, down from 11.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Social Software Market Share Distribution
ProductMarket Share (%)
Slack Business - Enterprise11.5%
Atlassian Confluence5.8%
Other82.7%
Enterprise Social Software
 

Featured Reviews

Rabindra K Maharana - PeerSpot reviewer
Sr Consultant at a tech services company with 10,001+ employees
Editing features improve document accessibility
There is a holiday calendar, however, I need to install an app or add something to it. The add-on feature is not readily available or well-documented. Guidance on this should be available in a forum. Recently, I used a feature in another tool—perhaps GitHub—where it helped prepare a chart. It involved listing resources, like having fifteen people in the X team, ten in the Y team, and seven in the Z team. It created a bar chart showing these numbers. This chart used AI to offer users the option to create it based on the data. It was then created on a separate page and made available.
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
16%
Manufacturing Company
12%
Computer Software Company
7%
Government
6%
Performing Arts
20%
Financial Services Firm
13%
Computer Software Company
11%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise26
Large Enterprise52
By reviewers
Company SizeCount
Small Business56
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?
Currently, I have no suggestions for improvements. There are no issues with stability or downtime with Atlassian Confluence.
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?
Slack Business - Enterprise keeps on adding a lot of features, but I would not comment from the feature point of view. Rather, I would comment on the ease of integration point of view. There is som...
 

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: December 2025.
881,082 professionals have used our research since 2012.