Klaviyo

Klaviyo is an email and SMS marketing platform built for e-commerce. Its strength lies in tapping deeply into customer data (purchases, browsing, lifecycle) to send the right message at the right time, with deep integration into online stores.

What is Klaviyo for?

You sync your store (notably Shopify), segment customers by behavior and purchase history, then automate high-value flows: welcome, abandoned cart, post-purchase follow-up, win-back, product recommendations. Klaviyo unites email and SMS in the same flows, with revenue-focused reporting that ties every campaign back to the revenue it generated. It's a tool built to drive sales, not just send emails.

Klaviyo or Mailchimp and Brevo?

Compared with Mailchimp, more general-purpose, Klaviyo goes much further on e-commerce data and revenue attribution. Compared with Brevo, often cheaper, it's more specialized and powerful for a store. For general-purpose automation outside e-commerce, ActiveCampaign remains relevant.

What are the limits of Klaviyo?

Price rises sharply with the number of active profiles, which can weigh in after just a few thousand contacts. Its feature richness means a learning curve, and the tool shows its full value mainly when connected to a store. Outside e-commerce, it's often overkill.