Slack
Team messaging platform with Workflow Builder for creating automated processes without code. Slack is a team messaging and collaboration platform founded in 2013 by Stewart Butterfield. Salesforce acquired Slack in 2021 for $27.
Key Facts
Pricing
| Attribute | Value | As of | Source |
|---|---|---|---|
| Slack pricing (July 2026) | Slack pricing (verified July 2026): Free $0, Pro $7.25/user/mo billed annually ($8.75 monthly), Business+ $15/user/mo billed annually ($18 monthly), Enterprise+ custom. The top tier is now "Enterprise+" (replacing Enterprise Grid), and the standalone Slack AI add-on has been discontinued — AI features are included in Business+ and above. | Jul 2026 | Slack pricing |
General
| Attribute | Value | As of | Source |
|---|---|---|---|
| Founded | 2013 | May 2026 | Slack |
| Acquisition | Acquired by Salesforce in 2021 for $27.7 billion | Jul 2026 | Wikipedia (Slack Technologies) |
| Organizations | 750,000+ organizations | Jul 2026 | Slack for Sales page |
| Daily Active Users | Slack reported that more than 12 million people used Slack daily as of September 2019 (Slack blog, 10 October 2019), up from more than 10 million daily active users announced in January 2019. This is a dated historical figure, not a current user count; Slack has not published a newer official figure. | Sep 2026 | Slack blog |
| Workflow Builder | No-code Workflow Builder (rebuilt 2023) | Jul 2026 | Slack workflow automation page |
| Pro Plan | $7.25/user/month (Pro plan) | Jul 2026 | Slack pricing page (Wayback US snapshot, 2026-07-29) |
| App Directory | 2,600+ App Directory integrations | Jul 2026 | Slack pricing page |
| Slack AI | Slack AI (2024) — search, summaries, recaps; since June 2025 AI features are built into paid plans by tier and the standalone Slack AI add-on is no longer sold | Jul 2026 | Slack blog (June 2025 pricing and packaging announcement) |
Pricing Plans
Free
Free forever
- ✓90-day message history
- ✓Basic Workflow Builder
- !Up to 10 app integrations
- !5 GB storage
Pro
($7.25/mo billed annually)
$8.75/user monthly, $7.25/user billed annually
- ✓Full message history
- ✓Unlimited integrations
- ✓Advanced Workflow Builder
Business+
($15.00/mo billed annually)
$18/user monthly, $15/user billed annually
- ✓SSO/SAML, compliance exports
- ✓Included AI features
- ✓99.99% uptime SLA
Enterprise+
Contact sales
- ✓Multi-workspace, DLP, eDiscovery
- ✓HIPAA eligible, custom retention
About Slack
Slack is a team messaging and collaboration platform founded in 2013 by Stewart Butterfield. Salesforce acquired Slack in 2021 for $27.7 billion. As of April 2026, Slack serves 750,000+ organizations. In October 2019 Slack reported that more than 12 million people used Slack daily, a dated historical figure rather than a current user count.
Workflow Builder (rebuilt in 2023) enables no-code automation directly within Slack. Workflows are assembled from triggers (new channel message, emoji reaction, webhook, schedule, shortcut button), steps (send message, collect information via forms, create a Canvas document, call an external API, update a channel topic), and connectors to external tools (Google Sheets, Salesforce, Jira, Asana, and others via Slack's connector framework). Workflows can run in the background or interact with users through forms and messages. The free plan includes 90 days of message history and basic Workflow Builder access. Pro plan ($7.25/user/month) provides full message history, unlimited integrations, and advanced Workflow Builder features. Business+ plan ($12.50/user/month) adds SAML SSO, data exports, and compliance features. Enterprise Grid is available at custom pricing for large organizations.
Slack Connect enables cross-company collaboration in shared channels. Slack AI (launched 2024) adds AI-powered search across messages and files, conversation summaries, and channel recaps. The Slack App Directory includes 2,600+ integrations with tools like Google Workspace, Microsoft 365, Zoom, Salesforce, Jira, GitHub, Asana, Trello, HubSpot, and Notion.
Integrations (8)
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