Resend
SuperTokens
| Feature | Resend | SuperTokens |
|---|---|---|
| Pricing | Free / from $20/mo | Free / from $0.02/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.6 / 5 | 4.3 / 5 |
| Best For | developers, saas-products, startups, indie-hackers | saas-developers, startups, privacy-focused-apps, self-hosters |
| Founded | 2022 | 2019 |
| Transactional Email | ✓ | ✗ |
| React Email | ✓ | ✗ |
| Webhooks | ✓ | ✗ |
| Custom Domains | ✓ | ✗ |
| Analytics | ✓ | ✗ |
| Dedicated Ips | ✓ | ✗ |
| Api | ✓ | ✗ |
| Email Password | ✗ | ✓ |
| Social Login | ✗ | ✓ |
| Passwordless | ✗ | ✓ |
| Mfa | ✗ | ✓ |
| Session Management | ✗ | ✓ |
| Pre Built Ui | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
✓ 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
✓ SuperTokens Pros
- Open-source with free self-hosting
- Pre-built UI components for quick integration
- Session management with anti-CSRF protection
- Multiple auth methods (email, social, passwordless, MFA)
✗ SuperTokens Cons
- Smaller ecosystem than Auth0 or Firebase Auth
- Documentation has gaps for complex setups
- Limited admin dashboard features
The Verdict
Resend is built for developers and saas products, with a focus on transactional-email and react-email. SuperTokens targets saas developers and startups and leads with email-password and social-login.
On pricing, SuperTokens is the clear winner for budget-conscious users — starting at $0.02/mo compared to $20/mo for Resend. That $19.98/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.
Both tools are a solid fit for startups — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
Bottom line: Resend has a slight overall edge — but if open-source with free self-hosting matters most to you, SuperTokens may still be the right call.