Slack
Webex
Slack
Webex
Slack
Webex
Slack
Webex
Slack
Webex
No signals
Slack
Webex
Slack
No signals
Webex
Slack
No signals
Webex
Users: Unlimited users
Storage: 5GB total
Limits: No SSO, No compliance exports, No guest access controls, No custom retention policies, Cannot recover data after 1 year
Users: Minimum 3 users required
Storage: 10GB per user
Limits: No SSO/SAML, No data exports for compliance, No user provisioning, No audit logs
Users: Per user pricing
Storage: 20GB per user
Limits: No Enterprise Key Management, No HIPAA compliance, No unlimited workspaces, Cannot downgrade if you later upgrade to Grid
Users: Unlimited workspaces
Storage: 1TB per user
Limits: Annual commitment required, Cannot downgrade to Business+ ever, Multi-year contracts often required for discounts
Users: 1 host
Limits: 40-minute meeting limit, No call-in numbers, No breakout rooms, No recording transcripts
Users: 1 host
Storage: 5GB cloud recording
Limits: No phone calling, No webinar features, Limited admin controls
Users: 1 user
Storage: 10GB cloud recording
Limits: No webinar features, Limited contact center features, SSO requires enterprise
Users: 1 host
Storage: 10GB cloud recording
Limits: Full enterprise features require custom quote, SSO may require separate setup
Users: Unlimited
Storage: Custom
Limits: Must commit to long-term contract, Pricing only available via sales call
| Feature | Slack | Webex |
|---|---|---|
| Communication | ||
| Real-time messaging Channels, DMs, threads | ||
| Video calls Huddles and integrations, up to 50 people on paid plans | ||
| Meetings | ||
| HD Video Conferencing Up to 1000 participants on business plans | ||
| Screen Sharing Limited control over which windows to share in some browsers | ||
| Cloud Recording Requires paid plan, storage limits apply | ||
| Meeting Transcription AI-powered, requires Meet plan or higher | ||
| Breakout Rooms Not available on Free plan | ||
| Data | ||
| Message history Free: 90 days visible, 1 year then deleted. Paid: Unlimited | ||
| Data export Business+ and above for compliance exports | ||
| Integrations | ||
| Third-party integrations 2,600+ apps. Free plan limited to 10 integrations | ||
| Cisco Hardware Integration Seamless with Cisco ecosystem | ||
| Third-party Integrations Not as seamless as with Cisco tools | ||
| Security | ||
| SSO/SAML Business+ and above only ($15/user) | ||
| End-to-end encryption Not available. EKM (customer keys) only on Enterprise+ | ||
| End-to-end Encryption Enterprise-grade security | ||
| SSO Integration Enterprise plans | ||
| Usability | ||
| Browser-only Joining Full features require desktop client download | ||
| Offline Mode Requires active internet connection | ||
| AI | ||
| Slack AI Separate $10/user add-on, must buy for ALL users | ||
| Calling | ||
| Phone Calling Requires Suite plan or higher | ||
| Voicemail Suite plan and above | ||
| Accessibility | ||
| Mobile app iOS and Android, notification reliability issues | ||
| Enterprise | ||
| Audit logs Enterprise+ only ($45/user) | ||
| Events | ||
| Webinar Hosting Separate Webex Webinars product, additional cost | ||
| Collaboration | ||
| Guest access Single-channel guests free, multi-channel count as paid users | ||
| Compliance | ||
| HIPAA compliance Enterprise+ only | ||
| FedRAMP authorized Moderate authorization available | ||
| Mobile | ||
| Mobile App iOS and Android, but lacks desktop feature parity | ||
