Cadence

Review

Ecommerce marketing platform

Klaviyo review

The ecommerce standard for revenue-driven email and SMS.

By Marcus LindqvistUpdated May 20, 20268 min read

Cadence rating

4.3
Visit Klaviyo ↗

The most complete ecommerce toolkit. Powerful but can get expensive at scale, and the Feb-2025 active-profile billing change rewards list hygiene.

Best for
Shopify and WooCommerce brands that want revenue attribution and predictive analytics
Pricing
Free up to 250 contacts; email from ~$20/mo (500 contacts), scaling with list size
Category
Ecommerce marketing platform

Klaviyo is the de-facto standard for ecommerce email and SMS. Its native commerce data model, pre-built revenue flows, and predictive analytics make it hard to beat for Shopify and WooCommerce stores — though costs and billing mechanics reward disciplined list management.

Strengths

  • Deep native ecommerce integrations (Shopify, WooCommerce, BigCommerce, Magento)
  • Revenue-attributed reporting makes ROI math straightforward
  • Best-in-class abandoned-cart, post-purchase, and win-back flow templates
  • Predictive analytics (next purchase date, customer lifetime value) that are genuinely useful
  • Large ecosystem of agencies and freelancers fluent in the platform

Trade-offs

  • Pricing climbs steeply as your list grows
  • Active-profile billing (since Feb 2025) can raise costs for large dormant segments
  • SMS is billed separately, per message
  • Email creation is drag-and-drop with only limited AI assist

What Klaviyo is

Klaviyo is a marketing platform built around an ecommerce data model: profiles plus product and order data. That foundation is what powers its revenue-attributed reporting and its library of commerce flows. For Shopify and WooCommerce brands, it is frequently the fastest path to a meaningful lifecycle program.

In recent cycles Klaviyo has expanded beyond pure ecommerce — a CDP tier and pushes into subscription, hospitality, and media verticals make it a legitimate broader B2C option. It has also shipped agentic campaign optimization for use cases like replenishment and win-back.

Where Klaviyo wins

  • Commerce data: orders, products, and customers sync from Shopify and WooCommerce without custom development.
  • Revenue flows: abandoned cart, browse abandonment, post-purchase, and win-back templates are mature and effective.
  • Predictive analytics: estimated next order date and customer lifetime value feed segmentation directly.
  • Ecosystem: a deep bench of agencies and freelancers know the platform well.

Pricing and the billing change

Klaviyo offers a free tier (up to 250 contacts, 500 sends). Paid email plans start around $20/month for 500 contacts and scale with list size — roughly $150/month at 10,000 contacts and higher from there. Email + SMS plans start higher, and SMS is billed per message.

The verdict

If you run an ecommerce store on Shopify or WooCommerce, Klaviyo remains the safe, capable default — its commerce data model and revenue flows are difficult to replicate elsewhere. Watch the active-profile billing as you scale, and pair it with strong list hygiene. Teams whose real bottleneck is producing on-brand creative quickly often pair or compare it with an AI-native generator like Brew.

Frequently asked

Is Klaviyo good for non-ecommerce businesses?
It can be. Klaviyo has expanded with a CDP tier and into subscription, hospitality, and media verticals, but its core strength and best templates remain ecommerce-focused.
Why did my Klaviyo bill go up?
In February 2025 Klaviyo moved to active-profile billing, charging based on profiles that received a message or engaged during the period. Large dormant segments can increase costs, so suppression and re-engagement hygiene matter.

The Cadence brief

Email intelligence, roughly monthly.

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Sources & further reading

Marcus Lindqvist

Contributing analyst, tools

Marcus is a former CRM consultant who has migrated teams across most major email platforms. He leads Cadence's tool reviews and comparisons.

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