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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
5.6
Slack Business Enterprise had a 40% ROI, boosting productivity, content organization, and collaboration, though some desired better pricing.
 

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
6.2
Users rarely need Slack Enterprise support due to platform reliability; when contacted, support is quick and effective.
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
 

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
7.5
Slack Enterprise is scalable and supports large teams, though managing channels can be complex with growing user numbers.
Slack is endlessly scalable.
Application Security Manager at Interact Intranet
Slack is not as comprehensive as Microsoft Teams in terms of scheduling and hosting meetings.
Data Engineer at BlazeClan Technologies
A user who engages with Slack daily and utilizes various features would provide more valuable insights.
Webflow Developer at Qureos
 

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 Business - Enterprise is stable and reliable, though some users report occasional slowdowns, crashes, and notification 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
Occasionally, Slack behaves unexpectedly and shuts down, which can be irritating, especially when I am in the middle of a task.
Data Engineer at BlazeClan Technologies
 

Room For Improvement

Atlassian Confluence faces criticism for poor search, inadequate editing features, inflexible pricing, and scalability issues for large enterprises.
Slack Business needs improved video, integration, performance, security, scalability, and user-friendliness with better pricing for freelancers.
More options similar to those available in Word or Google Docs in terms of formatting and other features could enhance its functionality.
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
It can be very distracting to people, so that's why we don't have Slack Business - Enterprise company-wide.
CEO at PeerSpot
There is a need to add a call group feature to facilitate scheduling and conducting meetings within Slack.
Data Engineer at BlazeClan Technologies
 

Setup Cost

Atlassian Confluence costs vary by users and add-ons, potentially increasing annually, with complex licensing affecting price perception.
Users have mixed views on Slack pricing; it's deemed affordable by some and costly by others, influencing plan choices.
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 enhances team productivity through seamless integration, advanced organization, customizable notifications, and an intuitive interface.
It's accessible from anywhere, and people from different regions, like India or Germany, can use it in their own time zones.
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
Good communication and a very good user interface are the best features Slack Business - Enterprise offers.
CEO at PeerSpot
It has become easier to use than Teams, which is the main benefit of Slack Business - Enterprise.
Director at Xander & Thomas
 

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
1st
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
78
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of December 2025, in the Enterprise Social Software category, the mindshare of Atlassian Confluence is 7.0%, down from 9.9% compared to the previous year. The mindshare of Slack Business - Enterprise is 13.1%, up from 11.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Social Software Market Share Distribution
ProductMarket Share (%)
Slack Business - Enterprise13.1%
Atlassian Confluence7.0%
Other79.9%
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.
SM
Director at Xander & Thomas
Has improved internal communication through simple messaging and faster search
It has become easier to use than Teams, which is the main benefit of Slack Business - Enterprise. It is simple and connected. Searching in Slack Business - Enterprise is very easy. Slack Business - Enterprise is superior compared to Teams. Slack Business - Enterprise is very stable. Granola (G R A N U L A) is an AI notetaker that is quite effective.
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Top Industries

By visitors reading reviews
Financial Services Firm
17%
Manufacturing Company
11%
Computer Software Company
8%
Government
6%
Performing Arts
20%
Financial Services Firm
13%
Computer Software Company
12%
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 Business54
Midsize Enterprise13
Large Enterprise21
 

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?
The direct call feature could be enhanced, particularly when calling peers. When showing screens during calls, the screen sharing functionality is not as smooth as Google's offering. It appears to ...
 

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.
879,259 professionals have used our research since 2012.