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Directory/Communication & Support/Slack
Last Verified: September 24, 2026

Slack

Channel-based messaging and collaboration platform for teams, with integrations for developer, HR, and sales tools.

Husnu Ete
Founder & Editor
Starting from
$7.25
per user/month (annual)
Pro plan • Free plan available
Visit Slack
May earn affiliate commission.

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Interface Overview

For the most up-to-date screenshots and product demos, visit the official Slack website.

View Slack Product Page

Key Strengths

  • Thousands of native app integrations
  • Powerful workflow builder and automations
  • Enterprise SSO and compliance features

Limitations

  • Can become expensive at scale
  • Notification noise requires active management

How it compares

FeatureSlackTwilioZendeskIntercom
Target AudienceSMBSMBSMBSMB
Primary StrengthThousands of native app integrationsreliable global carrier networkHighly customizable ticketing workflowsIndustry-leading chat UI/UX

Frequently Asked Questions

What is the difference between Slack Free and Slack Pro?
Slack Free limits message history to 90 days. Slack Pro ($7.25/user/month billed annually) unlocks unlimited message history and advanced workflow automations.
Does Slack support SSO?
Yes, SAML-based SSO is available on the Business+ and Enterprise Grid plans.