Fast answer
Use beehiiv for a newsletter-as-media business, Substack for simple publishing and discovery, and Kit for creator funnels tied to products, services, or courses.
Comparison
| Platform | Best for | Watch-out |
|---|---|---|
| beehiiv | Growth, referrals, newsletter business operations | May be more than a casual writer needs |
| Substack | Simple publishing and reader network | Less flexible for broader marketing funnels |
| Kit | Creator email automations and selling products/services | Less media-first than beehiiv |
Best first move
Pick based on revenue model before comparing tiny feature differences.