Rocket.Chat vs Slack
On the evidence we track, Slack leads this comparison with a composite score of 79/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for collaboration software. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Rocket.Chat
Rocket.Chat provides real-time messaging, voice, video conferencing, and third-party integrations designed for organizations with strict security and compliance requirements. It supports deployment in cloud, on-premise, hybrid, and air-gapped environments for defense and critical infrastructure operations.
Slack
LeaderSlack is a cloud-based system that enables teams to communicate through channels, integrate with external tools, and automate workflows while maintaining enterprise-grade security and compliance controls.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Rocket.Chat
- StarterFree
- CommercialContact sales
- GovernmentContact sales
- DefenseContact sales
Slack
LeaderFrom £0 (free tier) to £7/user/month (Pro). Free tier available.
- FreeFree
- 90 days of message history
- Up to 10 apps from Slack App Directory
- 1:1 audio and video meetings with screen sharing
- 1:1 external messages via Slack Connect
- SAML-based single sign-on
- +9 more
- Pro£7/user/month (£5.75/user/month billed annually)
- Unlimited message history
- Unlimited app integrations
- 2,600+ apps in Slack App Directory
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- GitHub
- Google Workspace
- Loom
- Jira
- Zapier
Rocket.Chat
- Bitbucket Cloud
- Google Drive
- Google Calendar
- Trello
- GitLab
- Bitbucket
- Salesforce CRM
- Hubspot CRM
- Confluence
- Google Meet
- Dropbox
- Slack
- Telegram
- Facebook Messenger
- BigBlueButton
- Pexip
- ChatGPT
- Rocket.Chat AI
- Bamboo
- ClamAV
- Zoom
- Confluence Cloud
- +7 more
Slack
Leader- Salesforce
- Atlassian
- Lucid
- Miro
- Smartsheet
- Mural
- Microsoft 365
- Okta
- ADFS
- Zendesk
Rocket.Chat or Slack: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.