Resend
Substack
| Feature | Resend | Substack |
|---|---|---|
| Pricing | Free / from $20/mo | Free / from $0/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.6 / 5 | 4.4 / 5 |
| Best For | developers, saas-products, startups, indie-hackers | independent-writers, journalists, newsletter-creators, thought-leaders |
| Founded | 2022 | 2017 |
| Transactional Email | ✓ | ✗ |
| React Email | ✓ | ✗ |
| Webhooks | ✓ | ✗ |
| Custom Domains | ✓ | ✗ |
| Analytics | ✓ | ✓ |
| Dedicated Ips | ✓ | ✗ |
| Api | ✓ | ✗ |
| Newsletter | ✗ | ✓ |
| Paid Subscriptions | ✗ | ✓ |
| Podcast Hosting | ✗ | ✓ |
| Community Chat | ✗ | ✓ |
| Recommendations | ✗ | ✓ |
| Notes | ✗ | ✓ |
✓ Resend Pros
- Best developer experience for sending emails
- React Email for building templates with components
- Free tier with 100 emails/day (3,000/month)
- Excellent deliverability with dedicated IPs available
✗ Resend Cons
- Marketing email features are minimal
- Newer platform with less enterprise track record
- No built-in email editor for non-developers
✓ Substack Pros
- Completely free to start — no monthly fees
- Built-in paid subscription infrastructure
- Network effects from Substack recommendations
- Simple writing interface without distractions
✗ Substack Cons
- 10% cut of paid subscriber revenue
- Limited design and branding customization
- No automation or complex email sequences
The Verdict
Resend is built for developers and saas products, with a focus on transactional-email and react-email. Substack targets independent writers and journalists and leads with newsletter and paid-subscriptions.
On pricing, Substack is the clear winner for budget-conscious users — starting at $0/mo compared to $20/mo for Resend. That $20/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.