Slack vs Telegram vs Viberia
| Attribute | |||
|---|---|---|---|
| Category | Communication | Communication | Communication |
| Pricing | Free tier | Free tier | Free tier |
| Starting price | $7.25/month | $4.99/month | $10/month |
| Free tier | Yes | Yes | Yes |
| Free trial | Yes | No | Yes |
| Deployment | — | — | — |
| API available | Yes | Unknown | Unknown |
| Platforms | — | — | — |
| Certifications | 8 | — | — |
| Integrations | 2 | — | — |
| Company | Founded 2009 | Founded 2013 | — |
| Feature attributes | |||
| Sso Saml | ✓ Yes | — Unknown | — Unknown |
| Rbac | ✓ Yes | — Unknown | — Unknown |
| Mobile App | — Unknown | — Unknown | — Unknown |
| Webhooks | — Unknown | — Unknown | — Unknown |
| Data Export | ✓ Yes | — Unknown | — Unknown |
| Video Conferencing | ✓ Yes | — Unknown | — Unknown |
| Team Messaging | ✓ Yes | — Unknown | — Unknown |
| Max Participants | — Unknown | — Unknown | — Unknown |
| Screen Sharing | ✓ Yes | — Unknown | — Unknown |
| Guest Access | — Unknown | — Unknown | — Unknown |
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Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.