Klaviyo

Klaviyo

Klaviyo is a B2C CRM and marketing automation platform that combines customer data, AI, email, SMS, WhatsApp and service tools for retail and ecommerce brands.

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ai-marketingai-email-marketingai-crmmarketing-automationSAAS
Last Updated Oct 20, 2026
Klaviyo screenshot

About

Klaviyo is a customer relationship management (CRM) and marketing automation platform built for business-to-consumer brands. It addresses a common problem for online retailers: customer data scattered across separate tools for email, text messaging, support, and analytics. Klaviyo consolidates that data on a single platform and applies AI to help teams deliver personalized messages across channels such as email, SMS and RCS, WhatsApp, mobile push, and social.

At a high level, Klaviyo works by unifying customer profiles and event data in its Klaviyo Data Platform (KDP), then using that data to segment audiences, automate marketing flows, and personalize both marketing and customer service interactions. Its AI capability, Klaviyo AI (K:AI), spans products including Composer, an AI marketing agent that can audit and build campaigns from a prompt, and Customer Agent, an AI service agent for support and selling. The company states that more than 169,000 brands in over 80 countries use the platform.

Key Features

Omnichannel marketing: Run email, SMS and RCS, WhatsApp, mobile app push, and social marketing from one place instead of separate tools.
Klaviyo Data Platform (KDP): Consolidates customer profiles and event data, with Standard KDP, Data Warehouse Sync, and Advanced KDP tiers.
Composer: An AI marketing agent that can review existing flows and campaigns and create new ones based on a prompt.
Customer Agent and Helpdesk: AI-powered customer service tools within Klaviyo Service that use the brand's own data to answer questions and support sales.
Segmentation and personalization: Build targeted customer segments and tailor content, product recommendations, and send times to each individual.
Klaviyo Analytics: Reporting and measurement across marketing, service, and data activities on the platform.
App marketplace: More than 350 pre-built integrations covering advertising, shipping, point of sale, loyalty, and subscriptions.

Pricing & Fees

  • Pricing: Not publicly listed on the pages we reviewed; check the official site for current plans.
  • Free signup: New users can create a free account and, according to the vendor, launch a first campaign within minutes.
  • Scale: The platform serves 169,000+ brands across more than 80 countries.
  • Developer access: Public APIs and developer documentation allow building custom apps and integrations on Klaviyo data.

Who It's For

Klaviyo targets consumer-facing businesses, with dedicated offerings for retail and ecommerce, restaurants, wellness brands, and enterprise organizations. Typical users include ecommerce marketers who run automated email and SMS flows, customer experience teams handling support through Customer Agent and Helpdesk, and data-minded growth teams that want analytics and personalization built on unified customer profiles. Agencies and consultants can also sign up to manage accounts on behalf of clients, and developers can extend the platform through its APIs and app marketplace.

FAQ

What is Klaviyo?Klaviyo is a B2C CRM and marketing automation platform that combines customer data, AI, and channels like email, SMS, WhatsApp, and social to help brands personalize marketing and customer service.

Does Klaviyo offer a free plan?Klaviyo offers a free signup that lets users create an account and send a first campaign; details of ongoing free limits are not specified on the pages reviewed.

How much does Klaviyo cost?Pricing is not publicly listed on the pages we reviewed; check the official Klaviyo pricing page for current plans.

Which tools integrate with Klaviyo?The Klaviyo App Marketplace offers more than 350 integrations spanning advertising, shipping, point of sale, loyalty, and subscription apps.

Who uses Klaviyo?More than 169,000 brands in over 80 countries use Klaviyo, including retailers, ecommerce companies, restaurants, and wellness businesses.