Slack

Q: How much does Slack cost?

From $7.25 per user a month, billed yearly. Pro is $7.25 yearly or $8.75 monthly. Business+ is $15 yearly or $18 monthly. Enterprise+ is $45 per user a month, billed yearly.

Q: Is Slack free?

Yes, there is a Free plan. It keeps 90 days of messages, allows up to 10 apps, and limits huddles and Slack Connect to 1:1.

Q: What happens to messages after 90 days on Free?

They are no longer searchable. Slack's pricing page says upgrading unlocks the previous 12 months of history.

Q: Who owns Slack?

Salesforce. Salesforce completed its acquisition of Slack on 21 July 2021, for about $27.7 billion.

Q: Does Slack have AI?

Yes, on paid plans. Pro includes thread and channel summaries and huddle notes. Business+ and Enterprise+ add Slackbot, AI search, daily recaps and file summaries.

Q: What are good Slack alternatives?

Mattermost, Basecamp and other team chat tools. See our Slack alternatives list.

Team chat with channels, huddles, apps and built-in AI. Owned by Salesforce.

Free planTeam chatSalesforce

Visit slack.com ↗Last verified: 5 Nov 2026

Fact-checked

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$0Free, 90 days of history

$7.25Pro, per user a month, yearly

$15Business+, per user a month, yearly

2013Public launch

The short version

What is Slack and how much does it cost?

Slack is a team messaging app built around channels, owned by Salesforce since 2021. The Free plan keeps 90 days of messages, and paid plans start with Pro at $7.25 per user a month billed yearly, or $8.75 billed monthly.

Slack launched publicly in August 2013, and Salesforce completed its purchase on 21 July 2021 for about $27.7 billion. Paid plans unlock full message history, unlimited apps, group huddles and Slack Connect with other companies. AI features depend on the plan: Pro gets thread and channel summaries and huddle notes, while Business+ and Enterprise+ add Slackbot, AI search, daily recaps and file summaries.

Bottom line: Slack is a strong pick for teams that live in chat and connect many tools. Watch the Free plan's 90-day limit: older messages are not kept searchable, and Slack says upgrading unlocks the previous 12 months.

What it does

Key features

Channels and messages

Organize talk by team, project or topic in channels, with direct messages for one-to-one work. Paid plans keep every message and file searchable.

Huddles

Start quick audio or video calls inside Slack. The Free plan limits huddles to 1:1.

Slack Connect

Work in shared channels with people at other companies. Pro supports external messages with up to 250 organizations.

Apps and AI

Connect other tools, with up to 10 apps on Free and unlimited on paid plans. AI summaries, recaps and search come with paid plans.

What it costs

Slack pricing (2026)

Plan	Price	What you get
Free	$0	90 days of message history, up to 10 apps, 1:1 huddles and 1:1 Slack Connect.
Pro	$7.25/user/mo yearly, $8.75 monthly	Unlimited history and apps, external messages with up to 250 organizations, AI summaries and huddle notes.
Business+	$15/user/mo yearly, $18 monthly	SAML SSO, SCIM, data exports for all messages, Slackbot, AI search, daily recaps and file summaries.
Enterprise+	$45/user/mo, yearly only	Unlimited workspaces, audit logs, legal holds, HIPAA support and data loss prevention. Through sales.

Prices in US dollars from slack.com/pricing on 5 Nov 2026. Pro and Business+ had a 50% off offer for 3 months on monthly billing only.

Honest fit

Who it's for, who it isn't

Pick Slack if

Your team works mostly in chat and wants one place for it
You connect many apps and want alerts and actions in channels
You work with clients or partners in shared channels
You want quick calls without opening a separate meeting tool

Look elsewhere if

You need full message history for free
Your company already pays for a suite that includes team chat
You want a self-hosted or open-source chat server
You have a large team and a tight per-seat budget

What people ask

Slack FAQ

How much does Slack cost?

From $7.25 per user a month, billed yearly. Pro is $7.25 yearly or $8.75 monthly. Business+ is $15 yearly or $18 monthly. Enterprise+ is $45 per user a month, billed yearly.

Is Slack free?

Yes, there is a Free plan. It keeps 90 days of messages, allows up to 10 apps, and limits huddles and Slack Connect to 1:1.

What happens to messages after 90 days on Free?

They are no longer searchable. Slack's pricing page says upgrading unlocks the previous 12 months of history.

Who owns Slack?

Salesforce. Salesforce completed its acquisition of Slack on 21 July 2021, for about $27.7 billion.

Does Slack have AI?

Yes, on paid plans. Pro includes thread and channel summaries and huddle notes. Business+ and Enterprise+ add Slackbot, AI search, daily recaps and file summaries.

What are good Slack alternatives?

Mattermost, Basecamp and other team chat tools. See our Slack alternatives list.

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