Notion vs Slack
No clear leader: Slack (78.7) and Notion (78.2) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Features
The capabilities each product documents. These tools do not share a category taxonomy, so this aligns what each vendor states rather than a normalised feature set.
| Feature | Notion | Slack |
|---|---|---|
| Ai assistant | ✓ | - |
| Ai global search and synthesis | ✓ | - |
| Api access | ✓ | ✓ |
| App marketplace | - | ✓ |
| Automated workflow bot builders | - | ✓ |
| Block based rich text editor | ✓ | - |
| Channel based topic organization | - | ✓ |
| Compliance controls | - | ✓ |
| Databases tables | ✓ | - |
| Deployment model | cloud_managed_saas | cloud_saas |
| Free tier | ✓ | - |
| Guest external access | - | ✓ |
| Hierarchical nested page trees | ✓ | - |
| Hosting | cloud | cloud |
| Iso 27001 | ✓ | - |
| Jira github engineering embeds | ✓ | - |
| Local first | ✗ | - |
| Markdown native | ✓ | - |
| Messaging | - | ✓ |
| Page version history and diffing | ✓ | - |
| Permissions granularity | page | - |
| Pricing model | freemium | - |
| Public publishing | ✓ | - |
| Real time coediting | ✓ | - |
| Real time multiplayer collaboration | ✓ | - |
| Real time multiplayer editing | ✓ | - |
| Recording transcription | - | recording_ai_notes |
| Rich markdown slash commands | ✓ | - |
| Robust message search and history indexing | - | ✓ |
| Soc2 type ii | ✓ | - |
| Sso scim | ✓ | ✓ |
| Threaded reply conversations | - | ✓ |
| Video meetings | - | ✓ |
What each one is
The product in its own terms, so the numbers below have context.
Notion
Cloud workspace that combines documents, databases, and tasks with AI-powered features and background automation through Workers and Custom Agents.
Slack
A work operating system that combines messaging, workflow automation, and app integrations to enable team communication, process documentation, and knowledge sharing with enterprise security.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Notion
Free trial available. Business and Enterprise base plans + Notion Credits for automation ($0.0023 per execution)
- Business$0.0023 per Worker execution
- Notion AI (basic features)
- Custom agents
- Workers automation
- Notion Credits add-on
- EnterpriseContact sales
- Notion AI (full features)
- Custom agents
- Workers automation
- HIPAA compliance
- Zero data retention
- +1 more
Slack
From £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
- Jira
- Zendesk
- Salesforce
- Loom
Notion
- Figma
- Slack
- Amplitude
- Google Analytics
- Google Calendar
- Gmail
- Google Drive
- Cursor
- Claude Agents
- YouTube
- Linear
- Microsoft Teams
- Stripe
- Microsoft Entra ID
- OneLogin
- Rippling
- Outlook
- Notion Calendar
- Asana
- Trello
- Datadog
- Splunk
- Sumo Logic
- Tableau
- +22 more
Slack
- Atlassian
- Lucid
- Miro
- Smartsheet
- Mural
- Zapier
- Microsoft 365
- Google Workspace
- Okta
- ADFS
Notion 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.