beehiiv vs Booker vs Boulevard vs Substack
| Attribute | ||||
|---|---|---|---|---|
| Category | Email & Messaging Marketing | AI & Automation | CRM & Customer Management | Email & Messaging Marketing |
| Pricing | Paid | Paid | Paid | Free tier |
| Starting price | $0/month | $99/month | $158/month | $10/month |
| Free tier | No | No | No | Yes |
| Free trial | No | No | No | No |
| Deployment | — | — | — | — |
| API available | Unknown | Unknown | Unknown | Unknown |
| Platforms | — | — | — | — |
| Certifications | — | — | — | — |
| Integrations | 2 | — | — | — |
| Company | Founded 2021 | — | — | Founded 2017 |
| Feature attributes | ||||
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.