In short
- Founded 2012. The default email + SMS platform for Shopify-based DTC brands
- Strong segmentation engine, behavioral, transactional, and predictive segments
- Flow builder (triggered automations) is the core of every well-run lifecycle program
- Klaviyo Data Platform (KDP) increasingly positions Klaviyo as a CDP, not just an ESP
What is Klaviyo
Klaviyo is the dominant lifecycle marketing platform for direct-to-consumer e-commerce brands. Founded in 2012, it became the default email and SMS tool for Shopify-based stores because of an unusually deep Shopify integration, purchase history, product views, cart contents, and customer attributes all flow into Klaviyo automatically and become available for segmentation and personalisation.
The platform has progressively expanded beyond email and SMS into browser push, mobile push, customer data unification (Klaviyo Data Platform), and AI-driven predictive segments. The core remains the same: triggered lifecycle programs that drive 20-40% of total e-commerce revenue for well-run DTC brands.
What Klaviyo does
- Email, campaigns (one-time sends), flows (triggered automations), templates, AI-assisted copy
- SMS, same primitives as email, separate compliance and consent layer
- Segmentation, behavioral (viewed product X), transactional (spent over €X), predictive (likely to buy soon, likely to churn)
- Forms, pop-ups, embedded forms, signup units feeding the email list
- Reviews, Klaviyo Reviews is a newer product capturing post-purchase reviews
- Klaviyo Data Platform, emerging CDP capabilities competing with traditional CDPs
Why Klaviyo dominates DTC
Three things made Klaviyo win:
- Shopify integration depth, Klaviyo speaks Shopify natively, with rich behavioral data flowing in real time
- Segment-and-flow paradigm, sophisticated triggered automation that was historically the domain of enterprise tools, packaged for SMB and mid-market DTC
- Revenue attribution baked in, Klaviyo reports its own attributed revenue per campaign and flow, which (whatever its accuracy) gives marketers a clear feedback loop
How it fits with broader attribution
Klaviyo reports email and SMS revenue using its own attribution model, typically a 5-day click + 1-day open window. That number is real but usually over-attributes, because email often serves as the “last touch” for customers who would have bought anyway (post-purchase nurture flows, recently-engaged cart abandoners, etc.).
A mature setup uses Klaviyo for in-platform optimisation and an independent attribution layer (like adtribute) for cross-channel revenue attribution and incremental-lift measurement. The two answer different questions.
FAQ about Klaviyo
How much does Klaviyo cost?
Klaviyo starts at $20/month for 500 contacts, rising to roughly $100/month at 5,000 contacts and $400/month at 25,000 contacts for email alone. Adding SMS roughly doubles the bill, and the costs climb fast above 50K profiles.
Is Klaviyo free?
Klaviyo has a free tier with up to 250 contacts and 500 monthly email sends, which is enough to try the product but not to run a real store. Paid plans start at $20/month.
What are the best Klaviyo alternatives for Shopify?
For stores under 10K contacts, Omnisend and MailerLite usually deliver the same flows at half the price. Shopify Email is free with any Shopify plan up to 10K sends and works for broadcasts. For high-volume DTC, the main upmarket alternative is Bloomreach Engagement (formerly Exponea).
Does Klaviyo work outside Shopify?
Yes. Klaviyo integrates with BigCommerce, WooCommerce, Magento, Salesforce Commerce Cloud, and custom stores via API. The deepest data integration is still with Shopify, where Klaviyo has direct sync for orders, products, and customer events.
Does Klaviyo have AI?
Yes. Klaviyo AI covers predictive analytics (CLV, churn risk, next order date), subject line generation, send-time optimization, and an AI assistant for segment building. The predictive features are the most-used and are included on standard paid plans.
How to use Klaviyo?
Sign up at https://www.klaviyo.com, install the Shopify (or BigCommerce, WooCommerce) integration, and import your contacts. Most teams ship their first welcome flow and abandoned cart series within a day.
Why choose Klaviyo?
Klaviyo’s deep Shopify integration and product-event data model make it the default lifecycle platform for DTC brands serious about email and SMS.
How does Klaviyo work?
Klaviyo syncs customer and order data from your store, then uses event triggers and segments to send personalised email, SMS, and push campaigns across the customer lifecycle.
How to learn Klaviyo?
Klaviyo has the Klaviyo Academy with free certifications, extensive documentation, and a large community of agencies offering paid implementation.
What are Klaviyo reviews?
Klaviyo is rated 4.6 on G2 with 1,325 reviews. See https://www.g2.com/products/klaviyo/reviews for detailed feedback.
Does Klaviyo have an API?
Yes, Klaviyo provides a comprehensive REST API for profiles, events, campaigns, and flows. Documentation is at https://developers.klaviyo.com.
Does Klaviyo have a trial or a demo?
Klaviyo has a free tier up to 250 contacts and 500 email sends per month, so you can build and test before paying.
Klaviyo pricing
Klaviyo is free. Plans are organised as Up to 250 contacts free · scales with list size. See the full Klaviyo pricing page for current tiers and any add-ons.
