Head-to-head
Klaviyo vs SMTP
Two leading email marketing tools, compared on pricing, features, and editorial fit. Updated for 2026.
SMTP
Email relay API and transactional email delivery with reputation protection
From $25/mo
Visit SMTPAt a glance
| Klaviyo | SMTP | |
|---|---|---|
| Tagline | Email + SMS for ecommerce. | Email relay API and transactional email delivery with reputation protection |
| Pricing model | Freemium | Paid |
| Starts at | Free | $25/mo |
| Founded | 2012 | — |
| AI-native | ||
| Categories | Email Marketing | Email Marketing, Automation |
| Vendor claimed |
Quick take
Pick Klaviyo if you need email + sms for ecommerce. Pick SMTP if you need email relay api and transactional email delivery with reputation protection.
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Frequently asked
- Is Klaviyo better than SMTP?
- It depends on your use case. Klaviyo is email + sms for ecommerce, while SMTP is email relay api and transactional email delivery with reputation protection. See the comparison above for which fits your team.
- What's the price difference between Klaviyo and SMTP?
- Klaviyo starts at Free. SMTP starts at $25/mo.
- Can I migrate from Klaviyo to SMTP?
- Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.