Find out more about Slack's team collaboration software with customer reviews, pricing info and frequently asked questions.

Updated on January 24th, 2023

The SMB Guide is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

Slack is a business project management and collaboration platform. With Slack, team members can share files, have group chats, host calls, and video conferences, and send out group notifications.



Monthly Pricing*




$8.75 /user.




Contact for quote.

*Discounts are available on annual subscriptions.

Slack Reviews

Pros: Excellent integration, storage, and reporting capabilities.

Cons: The free version only allows a maximum of 10 third-party integrations.

Bottomline: Fantastic platform for effective business collaboration and project management processes.

Key Information:

Legal Name

Slack Technologies, Inc.


Stewart Butterfield

Founding Date

Jan 01, 2014


500 Howard St., San Francisco, CA 94105

Number of Employees


Number of Customers




1 (415) 630-7943



What is Slack used for?

Slack is a collaboration platform that simplifies business communication by providing a single solution for messaging, tools and files that enable businesses to efficiently manage workflow processes.

How much does Slack cost per month?

Along with its free plan, Slack's monthly pricing starts at $8.75 per user per month.

What is Slack built on?

Slack is built on the following:

  • PHP and Java for the back-end.
  • Apache Lucene for searching.
  • Fastly as their CDN.
  • Electron AKA Atom for their desktop apps.

Are Slack workspaces free?

Yes. You can access a free version on their website with the following limitations:

  • Only the most recent 10,000 messages will be viewable and searchable.
  • When a workspace passes the 5GB file storage limit, Slack will archive older files as new files are uploaded.
  • Free workspaces can support up to 10 third-party or custom apps.

How secure is Slack?

Slack is a highly secure platform that uses SOC 2 Type II, ISO 27001, and HIPAA security standards. It also encrypts data in transit and at rest.

Is there a Slack app for desktop and mobile devices?

There is a Slack desktop app for Mac and PC computers, and there is also a Slack app for iOS and Android devices. You can use the Slack chat feature and other tools directly through the app.

How do I do Slack screen sharing?

When you are on a Slack call, you can click on the screen icon to share your screen with other callers.

How do I create a new Slack channel?

Click on the plus icon next to the "Channels" heading, then enter a new channel title and add participants. You can also rename the channel later by clicking on it and selecting "Edit."

What products can Slack integrate with?

Is there a way to create a Slack poll?

Yes. It's very easy to create a poll in Slack. All you have to do is type a question and list options, giving each option a different emoji. Participants can click on the emoji that matches their favorite option, and you can get a quick idea of which choice is the most popular.

What is the purpose of the Slack bot?

The Slack bot can help you by answering basic questions about how Slack works.

How do I download the Giphy/Slack integration?

You can find Giphy in All you have to do is sign in to your Slack account to add Giphy to Slack and start using GIFs in Slack chat windows.

Where can I find Slack API tutorials?

You can find dozens of Slack API tutorials at if you want to learn more about how to use the API.

What are some Slack alternatives?