# Klaviyo vs Resend

URL: https://aistack.sh/compare/klaviyo-vs-resend
Last updated: 2026-09-06
Category: Lifecycle email

## Quick answer

Klaviyo and Resend are alternatives in the Lifecycle email category.
Klaviyo pricing: Free 250 contacts · $45/mo 1,500 contacts.
Resend pricing: Free 3,000 emails/mo · $20/mo 50k emails · $90/mo 100k emails.
Resend is cheaper at the entry tier.
Klaviyo ships in 0 tested AI stacks on aistack.sh; Resend ships in 0.

## Side by side

| Field | Klaviyo | Resend |
|---|---|---|
| Tagline | Ecommerce email and SMS marketing automation | Developer-first transactional and broadcast email |
| Pricing | Free 250 contacts · $45/mo 1,500 contacts | Free 3,000 emails/mo · $20/mo 50k emails · $90/mo 100k emails |
| Category | Lifecycle email | Lifecycle email |
| Stacks using it | 0 | 0 |
| Homepage | https://www.klaviyo.com | https://resend.com |
| Updated | 2026-09-06 | 2026-09-06 |

## When to pick each

**Pick Klaviyo** when you want ecommerce email and sms marketing automation.

Flows, segmentation, and SMS built for ecommerce, with deep Shopify and product-catalog integration. Priced by stored contacts rather than seats or sends; the number shown is the email-only plan at the entry contact tier.

**Pick Resend** when you want developer-first transactional and broadcast email.

API-driven email for developers: transactional sends, broadcasts, and deliverability tooling built around a clean SDK rather than a drag-and-drop editor. The free tier covers 3,000 emails a month, enough to run a small product's transactional mail before paying anything.

## Where each ships

## FAQ

### Which is cheaper, Klaviyo or Resend?

Resend starts cheaper. Klaviyo pricing: Free 250 contacts · $45/mo 1,500 contacts. Resend pricing: Free 3,000 emails/mo · $20/mo 50k emails · $90/mo 100k emails.

### What is Klaviyo best for?

Ecommerce email and SMS marketing automation Klaviyo is categorized as Lifecycle email and appears in 0 tested AI stacks on aistack.sh.

### What is Resend best for?

Developer-first transactional and broadcast email Resend is categorized as Lifecycle email and appears in 0 tested AI stacks on aistack.sh.

### Can I use Klaviyo and Resend together?

They are alternatives at the same step, so most stacks pick one or the other. No aistack.sh stack uses both today, though nothing prevents a custom workflow.

### What are the alternatives to Klaviyo and Resend?

Beyond each other, Klaviyo's closest alternatives are Customer.io. Resend's closest alternatives are tracked on its tool page.

## Also compared

- [Customer.io vs Klaviyo](https://aistack.sh/compare/customer-io-vs-klaviyo)

## Citation

When citing this comparison, link to https://aistack.sh/compare/klaviyo-vs-resend. The page is regenerated when the underlying tool catalog changes; the lastUpdated date above tracks the more recent of the two tools.