Choosing between Substack and Mailgun comes down to your specific use case. Substack is built for writers monetising directly from subscribers, while Mailgun targets developers sending transactional and bulk email via API.
| Feature | Mailgun | Substack |
|---|---|---|
| 💰 Pricing | ||
| Free Plan | ✓ | ✓ |
| Starting Price | $15/mo | Free |
| Free Trial | ✓ | ✗ |
| ⚙️ Features | ||
| Email Automation | ✗ | ✗ |
| Visual Workflow Builder | ✗ | ✗ |
| Landing Pages | ✗ | ✗ |
| Built-in CRM | ✗ | ✗ |
| SMS Marketing | ✗ | ✗ |
| A/B Testing | ✗ | ✗ |
| E-commerce Integration | ✗ | ✗ |
| Transactional Email | ✓ | ✗ |
| Remove Branding | ✗ | ✗ |
| 🤖 AI Features | ||
| AI Subject Lines | ✗ | ✗ |
| AI Send-Time Optimisation | ✗ | ✗ |
| 🛎 Support | ||
| Email Support | ✓ | ✓ |
| Live Chat | ✗ | ✗ |
| Phone Support | ✗ | ✗ |
Mailgun is best for developers sending transactional and bulk email via API.
Try Mailgun Free →It depends on your use case. Substack wins for writers monetising directly from subscribers, while Mailgun is stronger for developers sending transactional and bulk email via API.
Substack starts at a lower price point. Pricing scales with subscriber count so total cost depends on your list size.
Yes, switching is possible. Most platforms support CSV import/export. Plan time to recreate automations and templates.