15 years helping Canadian businesses
choose better software

What Is Slack?

Slack is where work happens for millions of people everyday. Slack transforms how work happens by bringing AI and automation to where people are already collaborating. Go from chatting with your teams to chatting with apps and data. Break down siloed data through Slack's searchable channel architecture, allowing your teams and AI to access your organization's knowledge. Teams work together in context when CRM data, project management, and people all come together to solve problems and make decisions. Teams can talk to each other and their AI agent in conversational language, allowing them to access each other and information seamlessly. Slack AI recaps channels and summarizes threads so that employees can jump into discussion quickly, whether they are new to a project or catching up after being away. Enterprise applications can easily be integrated and shared in channel and direct message, giving a snapshot of context and the opportunity to collaborate on the spot.

Who Uses Slack?

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

Where can Slack be deployed?

Cloud-based
On-premise

About the vendor

  • Slack
  • Located in San Francisco, US
  • Founded in 2014

Slack support

  • Chat

Countries available

Australia, Austria, Belgium, Brazil, Canada and 21 others

Languages

English, French, German, Japanese, Spanish

Slack pricing

Starting Price:

US$7.50/month
  • Yes, has free trial
  • Yes, has free version

Slack has a free version and offers a free trial. Slack paid version starts at US$7.50/month.

About the vendor

  • Slack
  • Located in San Francisco, US
  • Founded in 2014

Slack support

  • Chat

Countries available

Australia, Austria, Belgium, Brazil, Canada and 21 others

Languages

English, French, German, Japanese, Spanish

Slack videos and images

Slack Software - Slack channels
Slack Software - Slack search tools
Slack Software - Slack task creations
Slack Software - Slack video/audio calls
Slack Software - Slack mobile application
View 6 more
Slack video
Slack Software - Slack channels
Slack Software - Slack search tools
Slack Software - Slack task creations
Slack Software - Slack video/audio calls
Slack Software - Slack mobile application

Features of Slack

  • @mentions
  • API
  • Access Controls/Permissions
  • Activity Tracking
  • Activity/News Feed
  • Alerts/Notifications
  • Audio Calls
  • Audio Capture
  • Calendar Management
  • Call Routing
  • Chat/Messaging
  • Collaboration Tools
  • Commenting/Notes
  • Communication Management
  • Contact Management Software
  • Content Management System (CMS) Software
  • Discussions/Forums
  • Document Management Software
  • Drag & Drop
  • File Sharing Software
  • Full Text Search
  • Knowledge Base Management
  • Live Chat Software
  • Meeting Management
  • Member Directory
  • Messaging
  • Mobile Access
  • Multi-Channel Communication
  • Multi-User Collaboration
  • Notes Management
  • Presentation Streaming
  • Real Time Synchronization
  • Real-Time Chat
  • Real-time Consumer-facing Chat
  • Remote Access/Control
  • Remote Support Software
  • Reporting & Statistics
  • Reporting/Analytics
  • Screen Capture
  • Screen Recording Software
  • Screen Sharing Software
  • Search/Filter
  • Single Sign On Software
  • Surveys & Feedback
  • Task Management Software
  • Third-Party Integrations
  • Two Way Audio & Video
  • Two-Way Audio & Video
  • Video Chat
  • Video Conferencing Software
  • Workflow Management Software

Alternatives to Slack

RingCentral Video is an integrated video conferencing, screen sharing, and messaging for teams big and small. No downloads required.
An ideal way to communicate. A flexible messenger that integrates with email and lets you store and share files easily.
Zoom Events and Webinars help customers host virtual and hybrid events and large-scale broadcasts.
Basecamp is a team collaboration system designed to be straightforward, easy for teams to adopt, and perfect for team managers.
Cloud-based application developed for business communications that helps manage chat, meet, file sharing, and more.
Telegram is a secure and fast messaging application for mobile and desktop devices.
ClickUp is the world's leading team communication tool with fully customizable and proprietary features that make it a must-have
Flock is a team communication tool that helps you get work done, only faster! Trusted by over 32,000 businesses globally.
Workplace makes business communication fast, fun and reliable, with features such as groups, live video and instant messaging.

Reviews of Slack

Average score

Overall
4.7
Ease of Use
4.6
Customer Service
4.4
Features
4.6
Value for Money
4.5

Reviews by company size (employees)

  • <50
  • 51-200
  • 201-1,000
  • >1,001
Jonathan
Jonathan
Lead Game Developer in Mexico
Verified LinkedIn User
E-Learning, 10,000+ Employees
Used the Software for: 6-12 months
Reviewer Source

Great for big projects

5.0 2 months ago New

Comments: Great, worked in a huge team, reaching out to the production and QA team, as well as having direct contact with all my middle managers at the company.

Pros:

I used Slack for my time being at a large company with 10,000+ employees. I had never been in a large team before but Slack made the project managment process and team comunication easy.

Cons:

As a user, none at all, but as a small business owner wanting to use Slack, it is quite expensive.

Verified Reviewer
Verified LinkedIn User
Consumer Goods, 2–10 Employees
Used the Software for: 2+ years
Reviewer Source

Best digital workplace you need for a small or medium company !

5.0 2 months ago

Comments: It’s part of our daily routine at work so I don't think we are getting rid of slack anytime soon.

Pros:

The instant messaging, the integration with API or other apps ( which in my point of view is very important ), the fact that you can use it as cloud docs management for your office are things that I mostly like.

Cons:

It can a bit frustrating finding docs, the search is not always responsive, but I can find my way around. The quality of the calls needs some work a little, but it's getting better, that's for sure.

Alternatives Considered: Facebook Business Suite

Reasons for Switching to Slack: The instant messaging, and creating channels is like way better than anything that we had used.

Christopher
Christopher
Associate Professor in Japan
Verified LinkedIn User
Research, 11–50 Employees
Used the Software for: 2+ years
Reviewer Source

Not bad for small groups, horrible for large groups, free plan is now crippled

3.0 last year

Comments: Only using Slack with external teams that use them. We no longer use it with our internal teams. Their confusing threaded views is really their downfall. There are other alternatives out there that do a much better job.

Pros:

Slack has a very nice, slick interface. When the workspace is not busy, it's very easy to see all the messages and figure out what's relevant for you. Very easy to setup new workspaces and channels. And basically, the key reason why we use Slack is because almost everyone is using it.

Cons:

Their free plan is now crippled. Only 90 days of retention. On a number of free workspaces, I wanted to refer back to some info which I no longer can find. Very frustrating. Slack also implements threaded conversations as a "tack-on" feature. Not everyone uses this feature and it just causes more and more user confusion, especially in large workspaces where many messages are mixed into the main channel as well as in threads. Their threads/mentions&reactions views which are supposed to help you filter out things not relevant for you are huge messes. Their pricing plans are also very expensive.

Alternatives Considered: Mattermost, Zulip and Microsoft Teams

Reasons for Switching to Slack: We're no longer using Slack internally. Only for external communication with teams that insist on using it. MS Teams offers better integration with their Office suite. Zulip offers superior threaded conversations and formatting at a much more reasonable cost.

Yash
Yash
Cloud operations in India
Verified LinkedIn User
Security & Investigations, 201–500 Employees
Used the Software for: 6-12 months
Reviewer Source

Slacktopia: Simplify Your Interaction

5.0 4 months ago

Comments: Overall, I've had nothing but great experiences with Slack. It's a really helpful platform for project management, teamwork, and communication. It is an invaluable tool for increasing productivity and encouraging teamwork because of its user-friendly interface, wide range of customisation options, and smooth connection with other programmes. But sometimes it might be difficult to handle notifications and information overload; it takes careful planning and moderation. Slack is still a vital tool for contemporary workplaces in spite of this.

Pros:

The best thing about Slack, in my opinion, is how easily it integrates with different communication channels and has an intuitive UI that makes it simple to share files, remain in touch with coworkers, and work efficiently in real-time. Its extensive app integrations and customisation possibilities also improve productivity and simplify workflows.

Cons:

Slack's potential for information overload, especially with regard to channels and notifications, is a disadvantage that can occasionally result in decreased focus and distractions. Additionally, without appropriate planning and communication channel control, managing big teams or complicated projects can become difficult.

japhet
Creative Director in South Africa
Telecommunications, 2–10 Employees
Used the Software for: 1+ year
Reviewer Source

The ultimate solution for remote work!

5.0 last month New

Comments: Slack allows me to organize my meetings and team interactions with professionalism. It serves as an excellent platform for file sharing, and the additional feature of screen sharing adds even more value.

Pros:

Slack is intelligently designed for entrepreneurs, offering efficiency and timeliness. It's particularly beneficial for remote work, as it consolidates all tasks into one software, saving a significant amount of time.

Cons:

Regarding drawbacks, I haven't encountered any significant ones yet. Slack is incredibly user-friendly, and I discover new features every day, enhancing its overall usability.