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

Support

  • Online

Deployment

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

Training

  • In Person
  • Live Online
  • Documentation
Slack video
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Slack pricing overview

See pricing details

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

Free Version

Yes

Free Trial

Yes

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

Showing 5 of 18,967 reviews

Overall
4.6/5
Ease of Use
4.6/5
Customer Service
4.4/5
Features
4.5/5
Value for Money
4.5/5
Liam M.
People Operations Manager
Computer Software, 11-50 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
    4/5
  • Likelihood to Recommend
    10/10
  • Reviewer Source 
  • Reviewed on 16/08/2019

"The Business Communication Tool of it's Time"

Comments: Honestly, this software just doesn't have competition at it's level and they have a stranglehold on this market, as they deserve. Between Spark, Skype, and Hangouts, they're really the Nickelodeon to Disney. Although they'll stick around, with the ability for them to add so many integration possibilities by not only their own development but other companies wanting to allow their own software's workflow to somehow run through Slacks platform. It's just a simple platform with so many functionalities and possibilities.

Pros: Availability. Simplicity. Instant transferability between devices. Customizability (yes, it's a word). One of my favorite pieces though is the ability to integrate so many other applications into and out of it. Get to that more in a moment...

Cons: This is petty but one of the largest issues I run into is when in the office and have Slack running on both my iPhone and my MacBook, sometimes I miss important, timely messages due to device priority. If the laptop screen is still open and I'm only a room or two over in another meeting, my phone will not receive the messages from the laptop until my screen times out and the rests.

  • Reviewer Source 
  • Reviewed on 16/08/2019
Taylor A.
Marketing Director
Health, Wellness & Fitness, 11-50 Employees
Used the Software for: 1+ year
  • Overall Rating
    4/5
  • Ease of Use
    4/5
  • Features & Functionality
    3/5
  • Customer Support
    Unrated
  • Value for Money
    Unrated
  • Likelihood to Recommend
    7/10
  • Reviewer Source 
  • Reviewed on 23/08/2019

"A good product with potential"

Comments: Overall, my experience has been positive. As mentioned, there are many aspects that are very easy to use. Slack works well for our management team who is always active on it and focused on certain projects. However, for our general customer service team, it is less effective.

Pros: I like how easy the software is to use. It's very intuitive for anyone who has used a messaging app before. Another feature that is valuable for us is the ability to add employees to only certain channels. We have a diverse team that doesn't need to be involved in every conversation.

Cons: I wish that some of the pro level features were available for the free version. It is cost prohibitive for us to pay for the pro version. For example, we often run into an issue when trying to search for things that are far back in a channel. Slack only allows us to go back so far. Therefore, we lose important communication. Also, the nature of the Slack channels allows things to get easily lost. As team members, comment and change the subject important pieces of information get buried before everyone sees it.

  • Reviewer Source 
  • Reviewed on 23/08/2019
Nicholas M.
Chief Flight Instructor
Airlines/Aviation, 11-50 Employees
Used the Software for: 1+ year
  • Overall Rating
    5/5
  • Ease of Use
    3/5
  • Features & Functionality
    4/5
  • Customer Support
    3/5
  • Value for Money
    2/5
  • Likelihood to Recommend
    3/10
  • Reviewer Source 
  • Reviewed on 08/09/2020

"Great for charitable organizations (because it can be free). Powerful. But expensive!"

Comments: Push notifications and alerts have been helpful. We are able to get important information out to our team very quickly, and we are able to "thread" the information so that only certain groups or certain topics are discussed in certain "channels" or "threads."

Pros: Slack is made free for basic functions for charitable organizations. For this reason it can be a great option for charitable organization. It has powerful features, including video conferencing, file sharing, phone and web app integration, and file sharing. It also has cross-platform integration allowing connectivity between multiple different products, including Google and Microsoft products and IFFFT.

Cons: It is not cheap at all for even a small organization (unless your organization qualifies for a free subscription). There are limits to the number of users in a video conference.

  • Reviewer Source 
  • Reviewed on 08/09/2020
Jon B.
President
Computer Software, Self Employed
Used the Software for: 1+ year
  • Overall Rating
    3/5
  • Ease of Use
    4/5
  • Features & Functionality
    2/5
  • Customer Support
    Unrated
  • Value for Money
    4/5
  • Likelihood to Recommend
    5/10
  • Reviewer Source 
  • Reviewed on 09/07/2020

"Slack is essentially advanced texting for business users"

Comments: I started using Slack because my client required it. I find that it cuts down on my email dependence but I'm often frustrated when attempting to compose a message without standard elements such as tables, inline images, etcetrera.

Pros: I like the ability to stay in touch with our users via whatever device I'm currently using. For example, I can respond from my home computer, tablet, work computer or via my phone. I especially like the ability to be notified of a new message via my phone where I can read the message on the phone but can step over to my laptop to reply. I also appreciate the ability to add an email thread to a Slack Channel by simply adding a slack email address (each channel has a unique email address) to the CC field when I reply.

Cons: The biggest con for me is the extremely limited amount of formatting available to Slack messages. I can make a font bold and add links to files/images but I really miss the rich text features many similar apps provide. It's also frustrating to need to keep typing adding the user name(s) when I'm responding to a message. I'm assuming that this is by design but it would really be nice to be able to "Reply All" to a conversation thread. The desktop Slack application (running on Windows 10 Pro) has a "clunky" feel to it. It's written with a framework that allows the Slack developers to write HTML and JavaScript code that is essentially compiled into a Windows application and it definitely shows. Something as simple as selecting text is counter-intuitive (until you realize that it's essentially a web page mascaraing as a Windows application.

  • Reviewer Source 
  • Reviewed on 09/07/2020
Prince K.
Senior Consultant
Telecommunications, 10,000+ 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 25/08/2020

"One of the Best Collab tools!"

Comments: Overall the tool is used to communicate and share files amongst your own team as well as other teams which are external to yours. Its great for announcements or even details that you can pin to each individual or team chat. The channels allow you even finer controls over who can see it, participate, as well as the overall purpose. Its a superb tool for having each team create their own channels as well as special channels which can be used for announcements, heads up, changes, basically anything you need to communicate across. It is everything you would expect in a collaboration tool.

Pros: Ease of use and the feature list is probably why this tool does so well. It even allows you to build custom apps that you can implement with your existing apps/tools for a more streamlines experience! Its honestly made life a lot easier to collaborate amongst team members, especially during Corona times and working from home.

Cons: There really isn't much about this tool that I don't like. It runs smoothly and constantly has new updates to make the experience even better. The only thing I can think of is that it can be resource intensive at times but honestly it has not slowed me down yet. Also, when sharing your screen with another team or individual, you have to go back to the initial chat to send a message, it would be nice if it can be done from the same UI of the screen-share. Well made tool overall!

  • Reviewer Source 
  • Reviewed on 25/08/2020