What Is Klaviyo?
Klaviyo is a B2C CRM and messaging platform built mainly for online retailers. It keeps a profile for every shopper that combines store events with email, SMS, mobile push and WhatsApp engagement, and uses that data for segmentation, behavior-triggered flows and campaigns. Predictive analytics estimate each customer's lifetime value, churn risk, expected next order date and average time between orders. Composer is an AI assistant that audits and creates flows and campaigns from a prompt, while Customer Agent answers support and sales questions using account data. Klaviyo Service adds a helpdesk that shares profiles with marketing. Pricing is assembled by product, such as Marketing, Data + Analytics and Service, and a free plan covers up to 250 active profiles and 500 email sends a month. Klaviyo connects to Shopify, WooCommerce, BigCommerce and Magento, plus Meta and Google Ads, through a marketplace of more than 350 apps, and offers iOS and Android apps and public APIs.
Best for: Ecommerce brands that want email, SMS and support data tied to purchase history in one customer profile.
Klaviyo is designed to react to commerce events such as viewed products, purchases, cart activity, and customer attributes in near real time. Those signals can feed segments and multi-channel flows across email, SMS, and push, making the platform particularly relevant when lifecycle messaging depends on store behavior and not on a static mailing list.