How do Klaviyo and SMTP.com prices compare?

Klaviyo: custom or unlisted usage pricing at 10,000 profiles. SMTP.com: $80/month on STARTER at 100,000 emails. Different billing units are not an equal-workload comparison. Estimates exclude unlisted add-ons and taxes.

What matters for transactional email?

Review SMTP or API integration, domain authentication, bounce and complaint events, suppression handling and delivery-log retention.

Can I compare marketing and agent email by sends?

Only when the published plan actually bills by sends. Contacts, subscribers and inboxes stay in their own billing units.

What features and free access does Klaviyo list?

E-commerce data, Omnichannel, Shopify ecosystem. Free access: Limited free plan. Check plan-specific availability and current terms on the provider's official pricing page.

What features and free access does SMTP.com list?

SMTP relay, Sender reputation, Bulk transactional email. Free access: Trial. Check plan-specific availability and current terms on the provider's official pricing page.

Email APIs · side by side

Klaviyo vs SMTP.com

Compare Klaviyo, SMTP.com by sending volume, delivery webhooks, inbound email, domain limits and retention.

Email APIs pricing calculator

These providers bill in different units. Each estimate uses its own workload; there is no same-volume price winner.

Klaviyo

Number of profiles

10K

SMTP.com

Monthly emails

100K

Klaviyo

Custom / not listed

Custom / unlisted usage pricing · 10K profiles

SMTP.com

$80 / mo

STARTER · 100K emails

Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.

Email APIs overview & pricing

Email APIs	Klaviyo	SMTP.com
Provider	Klaviyo	SMTP.com
Billing unit	profiles	emails
Plan at selected usage	Custom / unlisted usage pricing	STARTER
Monthly estimate	Custom / not listed	$80/mo
Workload	10K profiles	100K emails
Free access	Limited free plan	Trial
Published plans	Free	ESSENTIAL, STARTER, GROWTH, BUSINESS, HIGH VOLUME SENDERS
Prices checked	2026-10-08	2026-10-08

Provider

Klaviyo: Klaviyo
SMTP.com: SMTP.com

Billing unit

Klaviyo: profiles
SMTP.com: emails

Plan at selected usage

Klaviyo: Custom / unlisted usage pricing
SMTP.com: STARTER

Monthly estimate

Klaviyo: Custom / not listed
SMTP.com: $80/mo

Workload

Klaviyo: 10K profiles
SMTP.com: 100K emails

Free access

Klaviyo: Limited free plan
SMTP.com: Trial

Published plans

Klaviyo: Free
SMTP.com: ESSENTIAL, STARTER, GROWTH, BUSINESS, HIGH VOLUME SENDERS

Prices checked

Klaviyo: 2026-10-08
SMTP.com: 2026-10-08

Email APIs monthly cost

Klaviyo: Not pricedSMTP.com: $80

Different workloads, separate estimates

Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.

Which email providers fit your needs?

Klaviyo features & plan notes

E-commerce data
Omnichannel
Shopify ecosystem

Full pricing Official Pricing

SMTP.com features & plan notes

SMTP relay
Sender reputation
Bulk transactional email
Dedicated IP
Email Relay API
Reliable Expert Support
Detailed Reporting
Reputation defender (add on)

Full pricing Official Pricing

How to compare email providers

Browse Email APIs pricing

Klaviyo vs SMTP.com — FAQ

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