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Slack

Team messaging software with channels, video meetings, shared canvases and app integrations, plus an assistant that searches and acts across connected tools.

Free plan · From $4.38/user/moActively maintained

ProductivityWorkflow automationChat assistantEnterprise
slack.com ↗XInstagramFacebookWikipediaWikidata
Open slack.comAlternativesSet it up for my teamIs Slack yours? Claim the card →
At a glanceswept Oct 27, 2026

≈ 1.6Mvisits/mo

Use not read yet · estimate, read Oct 27, 2026

For
Teams who want chat, meetings, docs and AI assistance in one shared workspace.
Price
Free plan · From $4.38/user/mopricing page, read Oct 27, 2026
Activity
Actively maintainedrelease 7 days ago
Company
Slack Technologies, LLC · since 2009 · $903M (FY2020)site footer · per Wikidata · per SEC filings
App Store
4.154.5k ratingsiPhone & iPad · updated Oct 21, 2026
Used for
  • Automate repetitive tasks with Slackbot skills
  • Chat and video meet with internal and external partners
  • Find answers across connected apps with enterprise search
read off slack.com on Oct 27, 2026
Worth knowingcomputed from what we read · each with its source
  • Used more than 100% of the 829 tools on its shelfINITE Atlas →
  • On the web since 2009, older than 97% of its shelfINITE Atlas
  • Has an MCP server (1 in the registry)public registry →
  • Publishes llms.txt, a file written for AI assistantsslack.com ↗
Pricingpricing page, read Oct 27, 2026

Free plan · From $4.38/user/mo

pricing page

Price Watch: every price change in the Atlas, weekly

The companyeach fact with its source · read Oct 27, 2026
  • Made bySlack Technologiesper Wikidata
  • Founded2009per Wikidata
  • Domain since1992domain registered
  • Revenue$903Mper SEC filings · FY2020
  • HeadquartersSan Franciscoper Wikidata
  • Industrybusiness software industryper Wikidata
Your datawhat they publish, each line with its page · read Oct 27, 2026

These are Slack's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 27, 2026
  • MCP serverhttps://slack.com/mcpnot in the official registry: answered when asked
  • Stateanswers, requires sign-inchecked 2026-10-27
  • Address to connectslack.com/mcp
  • API docsapi.slack.comthe vendor's page ↗

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Productivityby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Pick up to two.

All 10 alternatives to Slack →

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Not it? Say what you need

beta

Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

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Questions this page answers
  • What is Slack?

    Team messaging software with channels, video meetings, shared canvases and app integrations, plus an assistant that searches and acts across connected tools. It is listed in the Atlas under Productivity and made by Slack Technologies, LLC.

  • Who is Slack for?

    Teams who want chat, meetings, docs and AI assistance in one shared workspace.

  • How much does Slack cost?

    Slack has a free plan; paid plans start at $4.38/user/mo, per its pricing page on 2026-10-27.

  • Is Slack free?

    Yes, Slack has a free plan, per its pricing page on 2026-10-27.

  • Is Slack still maintained?

    Actively maintained: release 7 days ago.

  • Who owns Slack?

    Slack is run by Slack Technologies, LLC, per its site footer (2026-10-27).

  • Is Slack safe?

    We do not audit vendors. What Slack publishes, read 2026-10-27: SOC 2, ISO 27001, HIPAA, GDPR, FedRAMP, CCPA stated on its security page.

  • Does Slack have an iPhone app?

    Yes: “Slack” on the App Store, rated 4.1 from 54.5k ratings; current version released 2026-10-21.

  • Is Slack HIPAA compliant?

    Slack states HIPAA compliance on its security page (2026-10-27). We have not verified it.

  • What are alternatives to Slack?

    In Productivity, by use: CrowForge, Boad Me.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk