Apollo.io vs Intercom vs Knock AI Reveal vs SleekFlow
| Attribute | ||||
|---|---|---|---|---|
| Category | Sales Intelligence & Lead Generation | Customer Support & Success | Sales Intelligence & Lead Generation | CRM & Customer Management |
| Pricing | Free tier | Paid | Paid | Paid |
| Starting price | $49/month | $29/month | — | $149/month |
| Free tier | Yes | No | No | No |
| Free trial | Unknown | Yes (14d) | Yes | Yes |
| Deployment | — | — | — | — |
| API available | Yes | Yes | Unknown | Unknown |
| Platforms | — | — | — | — |
| Certifications | 3 | 5 | — | — |
| Integrations | — | 4 | — | — |
| Company | Founded 2015 | Founded 2011 | — | — |
| Feature attributes | ||||
| Sso Saml | ✓ Yes | ✓ Yes | — Unknown | — Unknown |
| Rbac | — Unknown | — Unknown | — Unknown | — Unknown |
| Mobile App | — Unknown | — Unknown | — Unknown | — Unknown |
| Webhooks | — Unknown | ✓ Yes | — Unknown | — Unknown |
| Data Export | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Contact Database Size | — Unknown | — Unknown | — Unknown | — Unknown |
| Email Finder | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Phone Numbers | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Intent Data | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Chrome Extension | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Ticketing | — Unknown | ✓ Yes | — Unknown | — Unknown |
| Live Chat | — Unknown | ✓ Yes | — Unknown | — Unknown |
| Knowledge Base | — Unknown | ✓ Yes | — Unknown | — Unknown |
| Ai Chatbot | — Unknown | ✓ Yes | — Unknown | — Unknown |
| Omnichannel | — Unknown | ✓ Yes | — Unknown | — Unknown |
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.