Klaviyo

What Is Klaviyo?

Klaviyo is an email and SMS marketing platform built specifically for e-commerce, with native integrations into Shopify, WooCommerce, BigCommerce, and Magento. Its core advantage is behavioral data: Klaviyo automatically syncs every customer action (product views, add-to-cart, purchase, refund) from your store, then uses that data to segment customers and trigger automated marketing sequences.

The result is email marketing that responds to what customers actually do rather than just when they signed up. Klaviyo powers email marketing for over 135,000 e-commerce businesses, from direct-to-consumer startups to eight-figure brands.

Key Features

• Behavioral segmentation, segment customers by purchase history, product viewed, order value, days since purchase, and more
• Pre-built flows, abandoned cart, post-purchase, welcome series, browse abandonment, win-back, and price-drop alerts
• SMS marketing, send text messages on the same platform as email, with shared customer profiles
• Predictive analytics, predicted CLV, churn probability, and next purchase date per customer
• AI-powered send time optimization, send each email when each specific subscriber is most likely to open
• A/B testing, test subject lines, content, and send times automatically
• Shopify integration, real-time sync with Shopify store data, one-click setup
• Revenue attribution, see exactly how much revenue each email campaign and flow generates

Who Is Klaviyo Best For?

E-commerce brands on Shopify, WooCommerce, or BigCommerce that want email and SMS marketing driven by real purchase behavior. DTC brands building customer retention strategies. E-commerce marketers who want accurate revenue attribution tied to specific emails. Any store generating at least $5,000/month in revenue, where automated retention flows deliver measurable ROI.

Pricing

• Free: Up to 250 contacts, 500 email sends/month, 150 SMS credits
• Email: Starts at $20/month for 500 contacts, scales with list size
• Email + SMS: Starts at $35/month for 500 contacts
• At 10,000 contacts: approximately $150/month for email; SMS is usage-based
• Pricing scales with contact count; estimate at klaviyo.com/pricing for your list size

Limitations

Pricing grows significantly with list size; large lists can cost $1,000+/month. More complex to set up than Mailchimp for non-e-commerce use cases. SMS costs are additional to email costs. Less suitable for B2B, SaaS, or service businesses that don’t have transactional e-commerce data to leverage.

Verdict

Klaviyo is the best email marketing platform for e-commerce. The behavioral segmentation and pre-built e-commerce flows (abandoned cart in particular) generate immediate, measurable revenue for most stores. The free plan is a genuine starting point for new stores; the platform scales with the business without requiring a tool migration.

Frequently Asked Questions

Does Klaviyo integrate with Shopify? Yes, Klaviyo has a native Shopify integration that syncs customer, order, and product data in real time. Setup takes under 10 minutes and all standard e-commerce flows (abandoned cart, post-purchase) work automatically after connection.

Is Klaviyo free? Klaviyo has a free plan for up to 250 contacts and 500 emails/month. Paid plans start at $20/month and scale with list size.

How does Klaviyo’s abandoned cart email work? When a customer adds items to their cart and leaves without purchasing, Klaviyo automatically sends a timed sequence of emails reminding them of their cart. Timing (typically 1 hour, 24 hours, 72 hours) and content are fully customizable. Abandoned cart flows are the highest-ROI automation for most e-commerce stores.

Is Klaviyo better than Mailchimp for e-commerce? For e-commerce, yes. Klaviyo is built around purchase behavior data and has deeper e-commerce integrations. Mailchimp is more general-purpose and easier to use for non-e-commerce businesses, but it lacks Klaviyo’s behavioral segmentation depth and revenue attribution.