15 years helping Irish businesses
choose better software

What Is Slack?

Slack is your productivity platform.
Welcome to the command center of your workday. Discover a more flexible way to work with all your people, apps and partners in one space. Slack connects people with each other and with their tools and data. Equip teams to be their most efficient and productive—to save time, increase ROI and open up all kinds of opportunities. Slack isn’t just a tool for sending messages. It’s a place where work flows between all your teams, tools, customers and partners.

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 Conferencing
  • Call Routing
  • Chat/Messaging
  • Collaboration Tools
  • Commenting/Notes
  • Communication Management
  • Contact Management
  • Content Delivery
  • Content Management
  • Discussions/Forums
  • Document Management
  • Drag & Drop
  • File Sharing
  • File Transfer
  • For Sales Teams/Organizations
  • Full Text Search
  • Group Management
  • Knowledge Base Management
  • Live Chat
  • Meeting Management
  • Member Directory
  • Messaging
  • Mobile Access
  • Multi-Channel Communication
  • Multi-User Collaboration
  • Notes Management
  • Presentation Streaming
  • Productivity Tools
  • Real Time Notifications
  • Real Time Synchronisation
  • Real-Time Chat
  • Real-time Consumer-facing Chat
  • Remote Access/Control
  • Remote Support Software
  • Reporting & Statistics
  • Reporting/Analytics
  • SSL Security
  • Screen Capture
  • Screen Recording Software
  • Screen Sharing
  • Search/Filter
  • Single Sign On
  • Support Ticket Management
  • Surveys & Feedback
  • Task Management
  • Third Party Integrations
  • Two Way Audio & Video
  • Two-Way Audio & Video
  • Video Chat
  • Video Conferencing
  • Workflow Management

Slack Alternatives

A visual collaboration tool that creates a shared perspective for your team on any project in a fun, flexible, and rewarding way. Learn more about Trello
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.
Cloud-based messaging application that provides media exchange, data encryption, photo editing, and more.
Cloud-based solution that assists with customer communications through business interactions, automation, messaging and more.
Open source team communication platform that provides organizations with messaging and file-sharing tools for web, PCs, and mobiles.
The world's largest open source communications platform.
A real-time messaging app that can be used on Windows 10, iOS, and Android devices.
Online communication tool that allows video, audio, and text conversations, using public or private servers.

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
Ray
Ray
Research and Cultural Consultant, Editor/writer, interpreter. in Canada
Verified LinkedIn User
Government Administration, 2–10 Employees
Used the Software for: 1+ year
Reviewer Source

Highly effective and secure tool for team collaboration

5.0 last month New

Comments: Overall, Slack was an outstanding tool for collaboration among our team.We were confident in data security knowing that all data, both at rest, and in transit, is fully encrypted.Data security is increasingly important for all firms, and branches of government.

Pros:

During branch meetings and discussions, dozens of us were able to discuss a range of topics in real time.Also, Slack is one of the most famous collaboration tools (text, voice, video and file exchange) that runs on nearly all platforms: Windows, Mac, Android, Linux, iOS, and in an online web-based version. Brilliant!

Cons:

Occasionally, Slack would not load properly and experienced connectivity problems with video and audio. But these problems may have been a result of our overloaded server, and not a problem with Slack. The allotted storage space for users may not be enough if you have large files.

Sylvia
Web Designer/ Web Developer in Kenya
Information Technology & Services, 2–10 Employees
Used the Software for: 6-12 months
Reviewer Source

Great Platform for Internal Communication

5.0 3 weeks ago New

Comments: Slack is a convenient workplace communication tool. It allows us to create different team channels where we share the details of a specific project. Slack sends real-time notifications to ensure no one misses important information. We usually use it for business communications and use other apps for personal chats and it meets our expectations.

Pros:

Slack is a versatile platform that allow convenient communication using text, audio, or video. It has an simple design which makes it easy for anyone to get started easily. Slack sends notifications quickly, ensuring you don't miss important files or communication. It is better for official communication than the regular apps we use on phones daily.

Cons:

I dislike too many emails notifying me what happened on Slack. The notifications may come in handy when you missed a lot but they could also bother you because they are rather too many. The mobile app seems too congested compared to the desktop access version.

Joshua
Architect in Nigeria
Architecture & Planning, Self Employed
Used the Software for: 6-12 months
Reviewer Source

The almight community platform.

3.0 3 weeks ago New

Pros:

Slack as a community app allows me to connect with others who have similar interests, share information, and support each other.

Cons:

Nothing really, slack fits all I use it for without an exception.

François
president in Canada
Human Resources, 2–10 Employees
Used the Software for: 2+ years
Reviewer Source

Essential but requires some effort

5.0 4 months ago

Comments: Initially difficult but once the balls get rolling it is my favorite app to get in touch with my communities.Much better than the social media app like Facebook or TwitterThis is the true meaning of community!!!

Pros:

Very nice way to handle the thread Possible to upload files and images easilyThe multiple channels is amazing to separate groupes and discussionsThe mobile app is amazingI love the notification system

Cons:

It takes some effort to understand the mechanic of itA bit difficult to invite people form outside the companyMost people do not respect the Thread replies and that makes it difficult to follow some discussionsA bit difficult to find specific posts

Alternatives Considered: Mighty Networks and Open Social

Reasons for Switching to Slack: After airing my needs to some colleagues with more experience with these softwares and trying them for a few weeks, Slack simply stood out!I have tried to create community of practice to share tips and trick for years. Each was a failure. Using Slack allow me to BE in some communities and manage some others from a single account! Amazing product!!!

Fedor
Fedor
CTO in Finland
Verified LinkedIn User
Financial Services, 11–50 Employees
Used the Software for: 2+ years
Reviewer Source

Standard chat app in IT companies

5.0 last month New

Pros:

In our company most of internal communication and support of key customers go through Slack. Slack Connect is a really great thing, especially because Slack reached network effect.

Cons:

Lack of autocompletion using AI and advanced spell checking in messages.

Alternatives Considered: Google Meet

Reasons for Switching to Slack: Threads, Slack Connect, Calls (they were pretty bad, but significantly improved), Screen sharing