Slack

Slack

A single place for team communication and workflows

4.6/5 (15698 reviews)

Slack Overview

Teams in Slack work together in channels that can be organized by project, department, office location, or anything else, really. This makes it easy for users to follow the topics that are important to them. Public channels are open to anyone on the team so marketing can see what designers are working on, sales can see what’s on the product team’s roadmap, and new hires can easily get up to speed instead of starting with an empty email inbox.

Slack connects to the tools and services that businesses already use and centralizes the notifications, files, and data from hundreds of different applications. This means no more searching through emails for that one follow-up, constantly switching between different tabs and dashboards, or juggling dozens of tools - each with their own login. Slack helps teams work smarter by providing all of the information and context needed to make effective decisions quickly.

Everything shared in Slack is automatically indexed and archived so that companies can create a comprehensive knowledge base with zero effort, simply by working in Slack. And, Slack’s search makes it easy find the information users need, whenever they need it.

Pricing

Starting from
US$8,00/month
Pricing options
Free Trial
Free
Subscription
Value for money

Devices

Business size

S
M
L

Markets

Asia, Australia, Brazil, Canada, China and 5 others, Europe, Germany, India, Japan, Latin America

Supported Languages

English, French, German, Japanese, Spanish

Slack Reviews

Overall rating
4.6/5
95% positive reviews
10946
Excellent
3951
Very good
656
Average
110
Poor
35
Terrible
John B.

Robust product that fosters effective communication and collaboration!

Used Daily for 1+ year
Reviewed on 2019/09/19
Review Source: Capterra

Our organization deployed Slack alongside a legacy client. The initial plan was to run both in parallel indefinitely, mostly because change is hard and there would be complaints. But Slack was so quickly adopted by a broad user base, the legacy client was officially retired after just a few months. Slack has been incredibly effective at fostering group communication and bringing our organization together. There are colleagues on Slack that never even used the legacy client. Whenever possible, Slack is used as an email alternative. Slack is also very robust with plenty of customization and integration. I have only scratched the surface of available options but the Slack Outlook Calendar "app" has been very useful. There have been some very infrequent (less than one per quarter) outages or availability issues but Slack has been quick to acknowledge and resolve the issues. Overall I am very pleased and would highly recommend Slack.

Pros

- Flexible notifications allow users to control frequency and delivery methods for messages
- Default options or custom emojis can be used for current availability status
- Availability status can be set to automatically clear after a specific period of time
- Messages can still be sent to users even when they are offline/unavailable
- Key contacts can be "starred" and maintained in a sidebar list for quick access
- Communication across large groups is facilitated via "Channels"
- Posting a new message in a "Channel" includes options to notify all users in the group
- Custom start and end times can be set for the "Do Not Disturb" function
- Extensive user preferences include themes with customizable hex colors
- Integration with other productivity tools via "apps" (Outlook Calendar app is especially useful)
- Support for custom emojis, loading messages and channel prefixes
- Mobile app is extremely user-friendly

Cons

- Dark theme (mode) does not apply to the sidebar, only the main chat/message window
- On the desktop app, your own account ("you") appears at the top of the Starred list (preferred) but on the mobile app "you" is sorted among all other Starred users
- Occasional but very infrequent outages or availability issues

Rating breakdown

Ease of Use

Likelihood to recommend

9.0/10
Ankush K.

Slack Review

Used Daily for 1+ year
Reviewed on 2019/09/18
Review Source: Capterra

It's one of the coolest apps I've tried, I'm glad I got a chance to switch from Skype.

Pros

It's best made for any type of communication chat, sharing files (pdfs, doc, xlx), code etc. It has some cool features which I use every day like set reminders, easy integration with other apps like Datadog/Airflow to set alerts/notification for your product. Search option is really amazing where you can search for text, word or pdf file. The other options are to make Alias which is important I think when you don't want to notify the whole channel and just type @Alias rather than @here.

Cons

The only issue I had with it is that it freezes sometimes on my laptop, my chat windows on my phone do not remain in sync with chat windows on the laptop like with my Hazy memory if I'm talking to someone on phone and don't remember the name of person I won't be able to get back to him from my laptop. I also use its free version which I kind of doesn't like as it only stores 10k messages. So I guess the recent contacts/conversation option might need some enhancements for better user experience. Also, intoroducing some Calendar feature would be great in future.

Rating breakdown

Value for Money
Ease of Use
Customer Support

Likelihood to recommend

8.0/10
Verified Reviewer

Communication made easy

Used Daily for 1+ year
Reviewed on 2019/09/13
Review Source: Capterra

Slack is a very good tool with many add-ons that can help your business with communication, reminders, etc. The library of add-ons is growing.
The only thing is that I wish the search was a little bit better, you often find irrelevant hits and it is a bit hard to exclude channels or people in your search.

Pros

How easy it is to use.
It is easy to chat with other members in the organization, it is easy to start small chat groups, for more permanent groups you can start channels, both public and private.
It has both voice calls and video calls that are fast and smooth with great quality.

Cons

It is a bit harder to cooperate with other companies, where skype is available for anyone and you can easily add any contact, in slack you need an administrator to add a quest to the workspace. a good thing is that for each paid license you have in the company you can invite 5 guests that have access to a single channel(single-channel guest). a small con is that you need to pay a license for any guest that need access to more than one channel(multi-channel guest)

The search function could offer a few more options

Rating breakdown

Ease of Use

Likelihood to recommend

9.0/10
Verified Reviewer

Google Hangouts Replacement, Saved us from Teams

Used Daily for 6-12 months
Reviewed on 2019/09/12
Review Source: Capterra

I actually enjoy Slack. It is fun to use, and I like much more than sending an email.

Pros

Slack really allows us to communicate effectively based on group or subject. We can communicate directly in the General chat, directly, or in any number of specialized group channels. Each team has their own channel, and if needed, that channel can be locked to prevent other teams from entering.

Most are open channels that allow for any of our teams to come in and converse on the subject titled. One our favorite things to use are external apps. I love that Slack will pop up an upcoming appointment or if we need a meeting in say Zoom, I can just type /zoom and it will generate a Zoom link and we can all join in. We are on the free tier, so with the higher level tier, you can get conferencing and a wealth of other features added in. The free level serves us very well.

We use email integration also, so important emails and even things like weather alerts pop up as a Slack notification. It is really a great service.

Cons

Can be confusing to use if you are not used to chat systems such as Hangouts or WhatsApp though. The idea of a separate room, or Group chat, confuses some, but once they see how things work, it is a non-issue.

Rating breakdown

Value for Money
Ease of Use

Likelihood to recommend

8.0/10
Olivia B.

free instant messaging for small businesses

Used Daily for 6-12 months
Reviewed on 2019/09/09
Review Source: Capterra

a great free/paid, GDPR compliant option for company instant messaging

Pros

Slack offers free versions of it's software which were suitable for our business and therefore saved us money versus competitor instant messaging products. Slack is also GDPR complaint so ticked our boxes in terms of what we needed. The interface is also simple to use and intuitive, as well as not being too cluttered. It offers both group chats, company wide groups and personal chats. Slack also has great integration possibilities with other apps such as dropbox, or client relationship managers, which is useful for sharing information. it also allows you to create polls and share gifs etc, and has clear pop up notifications and email updates.

Cons

-limited naming allowances for channels (e.g. no spaces end no capital letters) which can make it hard to think of obvious names for some groups
-the gif insertion is a strange system, (have to type /giphy [text] and then it will give you one suggestion of a gif and you have to shuffle if you want a different picture, rather than being able to choose)
-the way of responding to a certain message and creating a new chain can be complex to some in the team

Rating breakdown

Value for Money
Ease of Use

Likelihood to recommend

8.0/10

Slack Pricing

Starting from
US$8,00/month
Pricing options
Free Trial
Free
Subscription
Value for money

Free Plan: $0
• No limits on time or users
• Search and browse up to 10k of the most recent messages
• 10 apps or service integrations
• Native apps for iOS, Android, Mac & Windows Desktop
• Two-person voice and video calls
• 5GB total file storage for the team
• Two-factor authentication

Standard Plan: $6.67 per user / month billed annually (or $8.00/user/month when billed monthly)
Everything in the Free plan, and:
• Unlimited searchable message archives
• Unlimited apps and service integrations
• Custom retention policies for messages and files
• Guest access
• Priority support
• OAuth via Google
• Mandatory two-factor authentication
• Custom User Groups to reach a team or department
• Group voice and video calls
• 10GB file storage per team member
• Custom Profiles

Plus Plan: $11.75 per user / month
Everything in the Standard plan, and:
• SAML-based single sign-on (SSO)
• Compliance Exports of all messages
• 99.99% Guaranteed Uptime SLA
• 24/7 Support with 4-hour response time
• User provisioning and deprovisioning
• Real-time Active Directory sync with OneLogin, Okta, Centrify, and Ping Identity
• 20GB file storage per team member

Enterprise Grid
Slack Enterprise Grid powers the design, usage, and administration of multiple interconnected Slack workspaces across the entire company.
• Organization-wide search, direct messaging, and announcement-focused channels
• Unlimited workspaces, customized around the people, information and apps that matter most to a team
• Shared channels between workspaces to connect teams when needed
• Security, compliance, billing, and platform integration management in a single view
• Support for integrations with data loss prevention (DLP), e-Discovery, and offline backup providers
• 1 TB (1,000 GB) of storage per user
• Dedicated account and customer success teams
• 24/7 support with 2-hour response time

Slack Features

  • API
  • Activity Tracking
  • Automatic Notifications
  • Chat
  • Collaboration Tools
  • Collaborative Workspace
  • Commenting
  • Communication Management
  • Drag & Drop Interface
  • SSL Security
  • Search Functionality
  • Third Party Integration

  • Access Control
  • Activity Dashboard
  • Customizable Branding
  • Document Management
  • Document Storage
  • File Management
  • Permission Management
  • Projections

Additional information for Slack

Key features of Slack

  • 1:1 and group calls
  • @mentions
  • API availability
  • Activity logging
  • Activity tracking
  • All data transfer is encrypted
  • Always In Sync
  • Archiving & retention
  • Audio / video conferencing
  • Authentication & security
  • Business intelligence
  • Call sharing
  • Chat
  • Chat functionality
  • Collaboration tools
  • Collaborative workspace
  • Commenting
  • Communication management
  • Compliance management
  • Contact history
  • Create open channels
  • Deep, Contextual Search
  • Desktop & mobile messaging
  • Desktop notifications
  • Document distribution
  • Document imaging
  • Document indexing
  • Drag & drop interface
  • Email notifications
  • File Sharing
  • File transfer
  • Full text search
  • Indexing
  • Mobile integration
  • Nearly 100 integrations
  • Notifications
  • Open API to build your own integrations
  • Personalized profiles
  • Prioritizing
  • Private text chat
  • Real time data
  • Real time notifications
  • Real time updates
  • Screen sharing
  • Search functionality
  • Single sign on
  • Support for private groups and 1:1 direct messaging
  • Tagging
  • Tags, keywords & @mentions
  • Two-way audio & video
  • Video support
  • Workflow management

Benefits

Slack surveyed thousands of Team Owners and Admins to see how Slack helps their teams work. The average team using Slack sees:

  • A 32% increase in productivity.

  • A 48.6% reduction in internal email.

  • A 25.1% reduction in meetings.

  • And, 80.4% agree Slack has increased transparency on their team.

    These findings have both tangible and intangible benefits for any business. Fewer meetings, reply-all email threads, and lengthy conference calls means teams can work smarter and be more productive. Additionally, this helps teams feel more connected and engaged at work.

  • GetApp Analysis

    Email, voicemail, instant messages, text messages, and phone calls are just a few of the ways that busy teams communicate, but manually checking and responding to the messages coming from so many platforms consumes far too many resources for today’s busy teams. Slack is a cloud-based solution that replaces traditional forms of messaging, and brings all group communication together in one place.

    Designed for businesses of all sizes, Slack is frequently used by leading technology companies such as BuzzFeed, Salesforce, Spotify, and eBay. Top features include real-time messaging, drag-and-drop file sharing, automatic indexing, and integration with hundreds of popular business apps. Slack offers its own native apps for iOS and Android, which means users are able to stay updated whether they’re working inside or outside the office.

    Browsing Channels

    What is Slack?

    Slack is a real-time communication platform designed for teams. The cloud-based solution brings group communication together into a centralized environment and replaces long email threads and status update meetings. Conversations are automatically indexed and archived, which enables users to pull up past files—including PDFs and Google documents—regardless of how long ago those files were shared and discussed. Slack searches within files, and it also allows users to share documents with virtually anyone.

    In addition to its powerful messaging and document sharing capabilities, Slack also serves as a hub for integrated business apps. Organizations are able to integrate many of the tools they use every day with their Slack accounts. Pulling this data into a single platform saves time and increases efficiency for busy teams.

    Switching Between Teams

    Slack Main Features

    Real-time messaging

    Slack is best-known as a real-time messaging platform for teams. In addition to facilitating open conversations between groups of people, Slack also offers the ability to conduct private conversations in a one-on-on setting and within smaller sub-groups. (These sub-groups are ideal for handling more sensitive topics that may not apply to everyone in the company.)

    Login to Slack to start participating in a group conversation. These conversations will replace lengthy email threads, and they enable you to work more quickly when communicating with large groups of people. Use the @mention feature to tag a specific colleague within the context of a larger conversation, or add an emoji to demonstrate how you’re feeling at the time when a message is sent.

    Messaging

    Team channels

    Communication within Slack is divided up into channels, private groups, and direct messages. Channels are the place where open conversations take place. These conversations are easily archived and searchable.

    Anyone can join a channel, including team owners, admins, and regular users. However, you do have the option to prevent users with restricted access and single-channel guests from searching specific channels. Clicking on the information icon for each channel pulls up information about that channel’s purpose, along with the ability to add other users and browse shared files. The information icon is also what you’d select to leave any channel.

    Adding Channels

    Drag-and-drop file sharing

    Slack has developed a method for quickly sharing files of all types. Users can drag-and-drop files from their computers, or the cloud, directly into Slack. Slack supports PDFs, images, and videos, along with many other types of files.

    Once you’ve shared a document with your colleagues, get ready for the feedback. With Slack, your colleagues can comment on the file you’ve shared. These internal discussions can take place through the comments section. You can also add stars to the documents your colleagues have uploaded to mark which files you’d like to keep handy for future reference.

    Uploading Files

    Indexing and archiving

    Slack automatically indexes and archives everything that goes on within a team’s account. This includes all messages, notifications, and files. Slack also indexes the content of every document that’s uploaded, which means users can search for keywords contained in specific PDFs or Word documents.

    When you use Slack, you don’t have to worry about accidentally losing track of an important file, even after the group discussing that file has been disbanded. Private groups can be archived or closed after they’ve served their purpose. Archiving a group removes it from the list of available groups, but keeps all data secure for future reference.

    Archiving a Channel

    Contextual search

    The search features in most email platforms are not robust enough to handle the needs of growing organizations, which is why Slack has developed its own contextual search tools. Users are able to search for keywords across entire team archives, or within specific documents, images, and other files.

    In cases where the one thing you remember about a particular file is a generic keyword, you can use Slack’s filtering tools to dig deeper into the archives and pinpoint whatever it is you need. Search results can be filtered by date range, relevancy, and person, along with many other factors.

    Deep Search

    Slack Integrations

    Integrations are a major part of Slack’s platform. Slack integrates with virtually every major business app. Users are able to set up their apps to post notifications inside the app and bring data together into one place.

    Slack integrates with more than 80 external services, including Asana, Box, Dropbox, Desk.com, Google Drive, JIRA, and Stripe. Users with programming knowledge also have the option to create their own integrations.

    Slack Pricing

    Slack is free for teams of all sizes. Teams can use Slack for an unlimited amount of time without paying a dime. Organizations that need upgraded features, such as searchable archives with unlimited messages and unlimited external integrations, can sign up for a Standard plan at $6.67 per user, per month. Slack’s Plus plan costs $12.50 per user, per month. Enterprise plans are coming soon.

    Slack Bottom Line

    • Real-time conversations in an open or private environment
    • Creates transparency within groups and teams
    • Integrates with hundreds of popular business services
    • Mobile push notifications keep users updated 24/7
    • Free to use for teams of all sizes

    Slack FAQs

    Below are some frequently asked questions for Slack.

    Q. What type of pricing plans does Slack offer?

    Slack offers the following pricing plans:

    Starting from: US$8,00/month

    Pricing model: Free, Subscription

    Free Trial: Available

    Free Plan: $0
    • No limits on time or users
    • Search and browse up to 10k of the most recent messages
    • 10 apps or service integrations
    • Native apps for iOS, Android, Mac & Windows Desktop
    • Two-person voice and video calls
    • 5GB total file storage for the team
    • Two-factor authentication

    Standard Plan: $6.67 per user / month billed annually (or $8.00/user/month when billed monthly)
    Everything in the Free plan, and:
    • Unlimited searchable message archives
    • Unlimited apps and service integrations
    • Custom retention policies for messages and files
    • Guest access
    • Priority support
    • OAuth via Google
    • Mandatory two-factor authentication
    • Custom User Groups to reach a team or department
    • Group voice and video calls
    • 10GB file storage per team member
    • Custom Profiles

    Plus Plan: $11.75 per user / month
    Everything in the Standard plan, and:
    • SAML-based single sign-on (SSO)
    • Compliance Exports of all messages
    • 99.99% Guaranteed Uptime SLA
    • 24/7 Support with 4-hour response time
    • User provisioning and deprovisioning
    • Real-time Active Directory sync with OneLogin, Okta, Centrify, and Ping Identity
    • 20GB file storage per team member

    Enterprise Grid
    Slack Enterprise Grid powers the design, usage, and administration of multiple interconnected Slack workspaces across the entire company.
    • Organization-wide search, direct messaging, and announcement-focused channels
    • Unlimited workspaces, customized around the people, information and apps that matter most to a team
    • Shared channels between workspaces to connect teams when needed
    • Security, compliance, billing, and platform integration management in a single view
    • Support for integrations with data loss prevention (DLP), e-Discovery, and offline backup providers
    • 1 TB (1,000 GB) of storage per user
    • Dedicated account and customer success teams
    • 24/7 support with 2-hour response time

    Q. What are the main features of Slack?

    Slack offers the following features:

    • 1:1 and group calls
    • @mentions
    • API availability
    • Activity logging
    • Activity tracking
    • All data transfer is encrypted
    • Always In Sync
    • Archiving & retention
    • Audio / video conferencing
    • Authentication & security
    • Business intelligence
    • Call sharing
    • Chat
    • Chat functionality
    • Collaboration tools
    • Collaborative workspace
    • Commenting
    • Communication management
    • Compliance management
    • Contact history
    • Create open channels
    • Deep, Contextual Search
    • Desktop & mobile messaging
    • Desktop notifications
    • Document distribution
    • Document imaging
    • Document indexing
    • Drag & drop interface
    • Email notifications
    • File Sharing
    • File transfer
    • Full text search
    • Indexing
    • Mobile integration
    • Nearly 100 integrations
    • Notifications
    • Open API to build your own integrations
    • Personalized profiles
    • Prioritizing
    • Private text chat
    • Real time data
    • Real time notifications
    • Real time updates
    • Screen sharing
    • Search functionality
    • Single sign on
    • Support for private groups and 1:1 direct messaging
    • Tagging
    • Tags, keywords & @mentions
    • Two-way audio & video
    • Video support
    • Workflow management

    Q. Who are the typical users of Slack?

    Slack has the following typical customers:

    Freelancers, Large Enterprises, Mid Size Business, Non Profit, Public Administrations, Small Business

    Q. What languages does Slack support?

    Slack supports the following languages:

    English, French, German, Japanese, Spanish

    Q. What type of pricing plans does Slack offer?

    Slack has the following pricing plans:

    Free, Subscription

    Q. Does Slack support mobile devices?

    Slack supports the following devices:

    Android, iPhone, iPad

    Q. What other apps does Slack integrate with?

    Slack integrates with the following applications:

    Aircall, Asana, Bitium, Breezy HR, Datadog, Dropbox, Help Scout, LiveChat, PagerDuty, Resource Guru

    Q. What level of support does Slack offer?

    Slack offers the following support options:

    FAQs, Knowledge Base, Online Support, Video Tutorials