Definition
Klaviyo is an email and SMS platform built around e-commerce purchase data.
Category: CRM · Updated 1 Oct 2026 · BLITZ Campaign editorial
Who should use Klaviyo?
Online stores that want email and SMS driven by store data and segments. Compare it with simpler tools for your needs.
What are the alternatives?
Omnisend for smaller stores, Shopify Email for brand-new ones.