Customer.io vs Klaviyo vs Knock vs Mailchimp
| Attribute | ||||
|---|---|---|---|---|
| Category | Marketing | Email & Messaging Marketing | Marketing | Email & Messaging Marketing |
| Pricing | Paid | Free tier | Paid | Free tier |
| Starting price | $100/month | $20/month | $0/month | $13/month |
| Free tier | No | Yes | No | Yes |
| Free trial | Yes | No | No | Yes |
| Deployment | Cloud | — | — | — |
| API available | Unknown | Yes | Unknown | Yes |
| Platforms | — | — | — | — |
| Certifications | — | 4 | — | — |
| Integrations | — | 2 | — | 8 |
| Company | — | Founded 2012 | — | Founded 2001 |
| Feature attributes | ||||
| Sso Saml | — Unknown | ✓ Yes | — Unknown | — Unknown |
| Rbac | — Unknown | — Unknown | — Unknown | ✓ Yes |
| Mobile App | — Unknown | — Unknown | — Unknown | — Unknown |
| Webhooks | — Unknown | ✓ Yes | — Unknown | ✓ Yes |
| Data Export | — Unknown | ✓ Yes | — Unknown | ✓ Yes |
| Email Automation | — Unknown | — Unknown | — Unknown | — Unknown |
| Sms Marketing | — Unknown | ✓ Yes | — Unknown | ✓ Yes |
| Templates | — Unknown | ✓ Yes | — Unknown | ✓ Yes |
| Segmentation | — Unknown | ✓ Yes | — Unknown | ✓ Yes |
| Deliverability Tools | — Unknown | ✓ Yes | — Unknown | — Unknown |
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.