TL;DR - Slack
- Channel-based messaging platform with 2,600+ integrations, huddles, Canvas docs, and workflow automation
- Free plan covers basics (90-day history, 10 apps); paid plans start at $7.25/user/month with unlimited history
- Best for distributed teams needing deep app integrations, less ideal if you need built-in project management
What Users Say About Slack
Slack's 2026 story is about AI integration. Users (42M daily actives) praise the AI features bundled into all paid plans since mid-2025 — thread summaries, meeting recap, search improvements. The persistent complaint: Microsoft Teams' free bundling with M365 is still winning on price, even as Slack now beats Teams on AI cost-per-user ($7.25 Pro vs $18+/mo for Teams + Copilot).
Highlights
- Snappier messaging UX than Teams — still the best daily-driver feel
- Slack AI bundled in all paid plans since mid-2025 — no $10/user/mo add-on
- Slack Connect shares channels with external partners — essential for agencies and client work
- Canvas (collaborative docs in channels) matured beyond Teams' Loop components
- Semantic search (Pro+) actually finds what you meant, not just keyword matches
Limitations
- Pro at $8.75/user/mo is pricey vs Teams bundled free with M365
- Enterprise Grid pricing is custom and frequently $15-25+/user/mo
- Huddles and video quality still trail Zoom and Google Meet
- Some enterprise compliance controls lag behind Teams
- File storage limits (5GB Free, 10GB Pro) are stingier than Teams + OneDrive
Best for: Startups, agencies, and companies not already paying for Microsoft 365 — especially teams that value messaging UX over bundled everything. For M365-standardized enterprises, Teams is the cheaper default even if users prefer Slack's day-to-day feel.
Editorial synthesis from industry coverage, product docs, and early user reports
Pros & Cons
Pros
- Intuitive interface with low learning curve, most teams adopt it within days
- Deepest third-party integration ecosystem of any team chat tool (2,600+ apps)
- Slack Connect eliminates email chains with external partners via shared channels
- Powerful search across all messages, files, and connected apps from one bar
- Workflow Builder lets non-technical users automate routine processes
- Strong enterprise security with SOC 2/3, ISO 27001, HIPAA, and FINRA compliance
Cons
- Free plan limits message history to 90 days and allows only 10 app integrations
- Notification overload in large workspaces, channels can become noisy without discipline
- Pricing adds up quickly for large teams at $7.25-$12.50/user/month
- No built-in project management, still requires separate tools like Asana or Jira
- Slack AI features require Business+ or Enterprise plans, not available on Pro
Ratings Across the Web
Ratings aggregated from independent review platforms. Learn more
Preview
Key Features
Pricing Plans
Free TrialFree
Free
For small teams getting started
- 90-day message and file history
- 10 app integrations
- 1:1 huddles
- Channels and DMs
- 5 GB total workspace storage
- Basic AI (conversation summaries, huddle notes)
- Slack Connect with 1 external org
Pro
$7.25/per user/month (annual)
For growing teams that need full history and more integrations
- Unlimited message history
- Unlimited app integrations
- Group huddles up to 50 participants
- Unlimited Slack Connect orgs
- 10 GB storage per user
- Google SSO
- Basic AI (summaries and huddle notes)
- Salesforce channels
- Session duration controls
Business+
$15/per user/month (annual)
For large teams needing compliance, advanced AI, and SSO
- Everything in Pro
- Advanced AI (search, recaps, translations, file summaries, workflow generation)
- SAML-based SSO
- Data exports and corporate compliance
- 20 GB storage per user
- 99.99% uptime SLA
- 24/7 support with 4-hour response
- HIPAA compliance support
- Advanced Salesforce integrations (deal swarming, forecasting)
Enterprise+
For complex organizations needing enterprise-grade control
- Everything in Business+
- Enterprise AI search across organizational data
- Unlimited workspaces
- Enterprise Key Management (EKM)
- 1 TB storage per user
- DLP, eDiscovery, and custom retention policies
- Multiple SAML configurations
- FINRA and FedRAMP compliance
- GovSlack available (FedRAMP High, IL4)
- Free Slack Connect for external partners on free plans
What is Slack?
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Slack FAQ
How does Slack compare to Microsoft Teams?
What are the limits of the free plan?
Is Slack secure for regulated industries?
Can I communicate with people outside my company?
What is Slack AI?
Does Slack integrate with Salesforce?
Source: slack.com
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