Slack
Workplace messaging with channels, huddles, workflows, search and AI features for teams.
Free plan available
Our verdict
What it does well
- Free plan is free forever, with no time limit
- Over 2,600 apps in its marketplace
- Built-in huddles for video calls, plus Slack Connect with outside companies
Where it falls short
- Free plan saves and searches only the last 90 days of messages
- Free plan is limited to up to 10 apps and 1:1 external messaging
- Priced per user, so cost grows with team size
Slack is a workplace platform built around channels, direct messages, huddles (built-in calls), Canvas documents, Lists, workflows and AI search. Slack lists desktop apps for Mac, Windows and Linux, and mobile apps for iOS and Android. Its marketplace lists over 2,600 apps.
Pricing is per user per month. Free is $0 USD and saves and searches messages for 90 days. Pro is $7.25 USD per user per month when paying annually ($8.75 when paying monthly). Business+ is $15 USD per user per month annually ($18 monthly). Enterprise+ is $45 USD per user per month paying annually, through Contact Sales. A 50% offer for the first 3 months applies to monthly Pro and Business+ if bought online in the first 7 days of creating a team.
Slack compared
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What users say
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Last updated 16 October 2026. Facts checked against the official site on 16 October 2026. How we make money