Who Uses Slack?

Our customers range from two-person startups to Fortune 100 corporations. In fact, 77% of the Fortune 100 uses Slack.

What Is Slack?

Slack is a collaboration hub, where the right people and the right information come together, helping everyone get work done.

When your team needs to kick off a project, hire a new employee, deploy some code, review a sales contract, finalize next year's budget, measure an A/B test, plan your next office opening, and more, Slack has you covered.

Try Slack with your team for free.

Slack Details

Slack

https://slack.com

Founded 2014

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Slack pricing overview

See pricing plans

Slack has a free version and offers a free trial. Slack paid version starts at US$6.67/month.


Starting Price

US$6.67/month See pricing details

Pricing Details

Slack offers three pricing plans starting at $6.67 per user per month.

Free Version

Yes

Free Trial

Yes

Slack deployment and support

Support

  • Online

Deployment

  • Installed - Mac
  • Cloud, SaaS, Web
  • Installed - Windows
  • Mobile - iOS Native
  • Mobile - Android Native

Training

  • In Person
  • Live Online
  • Documentation

Slack Features

  • Brainstorming
  • Calendar Management
  • Contact Management
  • Content Management
  • Discussion Boards
  • Document Management
  • Project Management
  • Real Time Editing
  • Task Management
  • Version Control
  • Video Conferencing

View full list of Collaboration Software

  • Agile Methodologies
  • Budget Management
  • Client Portal
  • Collaboration Tools
  • Cost-to-Completion Tracking
  • Customisable Templates
  • Gantt Charts
  • Idea Management
  • Kanban Board
  • Milestone Tracking
  • Portfolio Management
  • Resource Management
  • Time & Expense Tracking
  • Traditional Methodologies

View full list of Project Management Software

  • Collaboration
  • Electronic Signature
  • Employee Activity Monitoring
  • Live Chat
  • Meeting Management
  • Remote Access
  • Remote Support
  • Softphone
  • Task Management
  • Time Zone Tracking
  • Video Chat
  • Web Conferencing

View full list of Remote Work Software

  • Activity/News Feed
  • Alerts/Notifications
  • Audio Calls
  • Discussion Threads
  • File Sharing
  • Mobile Access
  • Real-time Chat
  • Search
  • Surveys & Feedback
  • Task Management
  • Third Party Integration
  • Video Conferencing

View full list of Team Communication Software

  • Audio / Video Conferencing
  • Calendar Management
  • Call Recording
  • Call Routing
  • Chat / Messaging
  • Fax Management
  • File Sharing
  • Mobile Access
  • Multi-User Collaboration
  • Voice Mail

View full list of Unified Communications Software

Slack Alternatives

More Slack alternatives

Slack Reviews for UK Users

Read all reviews

Overall rating

4.6/5

Average score

Ease of Use 4.6
Customer Service 4.4
Features 4.5
Value for Money 4.5

Review software

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Sara O.
Content Coordinator
Government Administration, 11-50 Employees
Used the Software for: 2+ years
  • Overall Rating
    5 /5
  • Ease of Use
    5 /5
  • Features & Functionality
    5 /5
  • Customer Support
    Unrated
  • Value for Money
    5 /5
  • Likelihood to Recommend
    10/10
  • Reviewer Source 
  • Reviewed on 26/11/2019

"All Day, E'ery Day"

Comments: It is so helpful to use with remote teams. I use it daily for two different employers, and actually convinced my main employer (a government agency) to start using slack. Slack allows teams to communicate easily and quickly, sharing links and documents all through the app. It also allows for camaraderie and fun, an important part of every workplace, even when you aren't physically with your team. The absolute most convenient thing about Slack is that you can use the desktop and mobile version, and someone can ask you a question, you can answer it, and work can move forward efficiently. For teams with people in different time zones and different work hours, this is incredibly helpful while texting and email sometimes don't cut it. For people who are outside of traditional cell service, sometimes I can connect to Slack even when text/calls are not going through.

Pros: I love how easy it is to communicate with people, and the informal format the encourages communication rather than dissuades it. People might be less inclined to send an email or call because they are interrupting your work, but slack doesn't have that feeling at all.

Cons: The limit on shared images after you hit a certain threshold with the free version - to be fair, this is a minor inconvenience at most and just another reason to pay for it!

  • Reviewer Source 
  • Reviewed on 26/11/2019
Dulce L.
Legal Assistant
Legal Services, 11-50 Employees
Used the Software for: 2+ years
  • Overall Rating
    5 /5
  • Ease of Use
    5 /5
  • Features & Functionality
    5 /5
  • Customer Support
    Unrated
  • Value for Money
    Unrated
  • Likelihood to Recommend
    10/10
  • Reviewer Source 
  • Reviewed on 10/01/2021

"Best app for messaging!"

Comments: Slack is very fun to use and easy to get used to. I think every company should use it.
It’s also very private so only people within the company have access to message you. External users cannot find you or message you. Great software overall!

Pros: This app is very easy to get used to and it’s very customizable. You can choose a color theme or create your own and manage which channels you want muted or you got want to receive notifications.
I also love that they have an mobile app, a desktop app or you can use the web browser to login. It’s a great way to communicate with colleagues 1:1 or by group chats (channels).
You can also generate polls or gifs in the chat bar, respond to messages in a thread to not overflow the chat with responses and react to messages with emojis. I love it. I’ve used it for years!

Cons: Every so often the software does have issues. It’s happened maybe once or twice a year where it crashes for a couple of hours and messages cannot be sent. I think it has to do with the server or something but it usually resolves pretty quickly.

  • Reviewer Source 
  • Reviewed on 10/01/2021
Chaya W.
Trainee Software Engineer
Computer Software, 51-200 Employees
Used the Software for: 2+ years
  • Overall Rating
    3 /5
  • Ease of Use
    3 /5
  • Features & Functionality
    3 /5
  • Customer Support
    3 /5
  • Value for Money
    3 /5
  • Likelihood to Recommend
    7/10
  • Reviewer Source 
  • Reviewed on 18/04/2019

"Slack – Managing projects optimally"

Comments: Slack is a tool which can be used as a project management tool for managing projects and also it can be used for internal communication inside a project group or a company. Each project group can have its own channels inside the company workspace. Communication through private and public channels has made Slack more popular among the users.

Pros: Slack can be considered as a project management tool. Slack provides both mobile version and desktop version applications where the mobile version is installed in the mobile phone so that whatever may be the situation user may not miss any important information about the project instantly. While the desktop version helps to transfer files of the working project easily while working on the project. Slack provides the facility to share the files, folders, audio and video clips, links. there are private and public channels in slack. Users can be added to these channels and if the users prefer they can have their own personal chats through slack. The emojis, stickers, GIF are also added In Slack to provide better user experience and attract the users with its familiar look to most of the social media or texting apps.

Cons: In order to use Slack users need to have a proper network connection. Without proper network coverage, Slack won’t work. Sometimes messages won’t be delivered to the other side after a selected time(10 PM). Unless the user sets his or her state into active user won’t receive notifications after 10 pm. If the state is away then the messages sent after 10 pm won’t be delivered till the next morning. Because of this sometimes users may miss some important messages. It is both an advantage and a disadvantage too. There is no mechanism to know whether the receiver read the message or not once a message is sent. The sender has to wait until other messages come from the receiver acknowledging that the receiver read the message.

  • Reviewer Source 
  • Reviewed on 18/04/2019
Matt W.
Senior Data Systems Manager
Education Management, 501-1,000 Employees
Used the Software for: 2+ years
  • Overall Rating
    5 /5
  • Ease of Use
    5 /5
  • Features & Functionality
    5 /5
  • Customer Support
    5 /5
  • Value for Money
    5 /5
  • Likelihood to Recommend
    10/10
  • Reviewer Source 
  • Reviewed on 01/12/2020

"Great communication tool"

Comments: We have loved it. It has become the primary (almost exclusive) means of intra-department communication for our IT team.

Pros: I love pretty much everything about Slack. I love the ability to easily create new private and public channels; the ability to create conversation threads; the ability to pin comments; the huge selection of app integrations; the customizable Slackbot responses (we have had a lot of fun with this one); dark mode; the ability to quickly and easily share files with other members of the Slack workspace; the awesome Slack call feature; the ability to quickly access multiple Slack workspaces by adding them to the left sidebar; the native rich-text editor for enriching comments (including the code block option, which has been hugely useful for us); and the ease of management. We have found Slack to be a tremendously useful communication and collaboration tool for our organization.

Cons: I don't have a lot of complaints about Slack. One small annoyance is the truncated "Direct messages" list on the left side. This list displays team members to whom you have recently sent a direct message. However, it would be more useful if it was just a scrolling list of ALL team members (alphabetized), maybe even with a quick search box at the top, so you could quickly send a direct message to anyone on the team, and not just those with whom you have had a recent direct message conversation. That's really it in terms of cons. It is a great tool that has become indispensable for us.

  • Reviewer Source 
  • Reviewed on 01/12/2020
Brent w P.
Evangelist
Computer Software, 51-200 Employees
Used the Software for: 2+ years
  • Overall Rating
    5 /5
  • Ease of Use
    5 /5
  • Features & Functionality
    5 /5
  • Customer Support
    4 /5
  • Value for Money
    3 /5
  • Likelihood to Recommend
    10/10
  • Reviewer Source 
  • Reviewed on 22/12/2020

"The communication tool you can't do without"

Comments: Slack has improved our communication workflow with our team and improved the way we interact with clients. It allows for multiple language to be spoken by using some translation tools, thus including more staff and especially non-english speaking staff.

Pros: Slack is a great collaborative software that helps users to collaborate across cities, countries, and timezones. It is a crucial part of our project workflow and helps to let developers, project managers, and clients speak to each other in a collaborative enviroment. It has numerous integrations that allow for third-party apps to interact, create, and receive messages and alerts. These integrations allow us to have one place in which all communications can flow and makes it easier for a worldwide team to be up on the latest updates and critical alerts that may happen.

Cons: The slack tool can be a little battery intensive, especially as you add more slack channels. It also gets quite expensive as you add additional paid members to the group. If you are not aware of all your paid members, or you add guests as paid it can get very expensive quickly. Because this is a discussion, it is also possible that critical conversations can get lost in the stream of texts coming through.

  • Reviewer Source 
  • Reviewed on 22/12/2020