Ghost vs Substack
Self-hostable open source versus closed distribution network.
What matters for growth and lifecycle teams
Growth work lives or dies on targeting and measurement. What matters is whether behavioral triggers can be built without engineering time, whether the event stream supports attribution past the open, and whether deliverability holds when broadcast volume shares a reputation with product email.
| Priority | Ghost | Substack |
|---|---|---|
| Scheduling | Yes | Yes |
| Event stream | No | No |
| Deliverability | Depends on the SMTP provider configured (often Mailgun for Pro). | Reasonable for content-driven newsletters. |
| Operating since | 2013 | 2017 |
| Suppressions API | Yes | Yes |
| Best published rate per 1,000 | Tiers not published in comparable form | Tiers not published in comparable form |
| Multi-tenant | No | No |
| Free tier | Self-hosted is free (your infra cost) | Free, 10% of paid subscriptions |
| Starts at | Ghost Pro from $9/mo | 10% revenue cut |
For lifecycle and activation work running behavior-triggered journeys, broadcasts, and winback campaigns measured on revenue, Ghost takes every priority that separates them here (operating track record), while Substack matches it on the rest. On free tier, Ghost offers Self-hosted is free (your infra cost) against Free, 10% of paid subscriptions from Substack. That ordering reflects this audience. Weigh the same table differently and the answer changes.
Side by side
| Feature | Ghost | Substack |
|---|---|---|
| Deliverability | Depends on the SMTP provider configured (often Mailgun for Pro). | Reasonable for content-driven newsletters. |
| Multi-tenant | No | No |
| Free tier | Self-hosted is free (your infra cost) | Free, 10% of paid subscriptions |
| Starts at | Ghost Pro from $9/mo | 10% revenue cut |
| Tagline | Open-source publishing with built-in memberships and email. | Hosted newsletter platform with social network features. |
| Pricing model | self-hosted | subscriber-based |
| API | Yes | No |
| SMTP | Yes | No |
| SDKs | node | None |
| Templates | rich | basic |
| React Email | No | No |
| Webhooks | Yes | No |
| Inbound | No | No |
| Idempotency | No | No |
| Dedicated IP | No | No |
| DX score | 7/10 | 2/10 |
| Best for | Independent publishers who want to own their content and stack. | Writers who prioritize distribution over flexibility. |
Ghost
- ›Full ownership in self-hosted mode
- ›Memberships and Stripe integration
- ›Beautiful default themes
- ›Requires another SMTP provider for sending at volume
- ›Heavier than Buttondown for plain newsletters
Substack
- ›Distribution via the Substack network
- ›No platform fees beyond revenue cut
- ›No API, no automation, no custom domain on free
- ›Lock-in to platform