ConvertKit and Substack are both popular email platforms designed for creators, but they serve different needs and business models. ConvertKit focuses on comprehensive marketing automation and audience building, while Substack emphasizes direct monetization through paid subscriptions. Choosing between them depends on your primary goal: building a sustainable creator business or launching a newsletter with built-in payment infrastructure.
| Feature | ConvertKit | Substack |
|---|---|---|
| 💰 Pricing | ||
| Free Plan | ✓ | ✓ |
| Starting Price | $29/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 | ✗ | ✗ |
Neither is universally better—it depends on your goals. ConvertKit excels for creators building multi-product businesses with advanced automation, while Substack is superior for writers monetizing through direct subscriptions. ConvertKit has higher G2 ratings (4.4 vs 4.0), suggesting stronger satisfaction among power users.
Substack is cheaper if you're monetizing subscriptions, as it operates on a 10% revenue-share model with no upfront costs. ConvertKit starts free but requires $29/month for paid plans. For non-monetized newsletters, Substack's unlimited free tier beats ConvertKit's 1,000-subscriber limit.
Yes, most email platforms allow subscriber exports. You can export your Substack subscriber list and import it into ConvertKit, though you may lose some metadata. Plan your migration carefully to maintain subscriber engagement during the transition.