What is Klaviyo and what is it used for?

Klaviyo is a marketing automation and customer data platform designed primarily for e-commerce businesses. It helps brands use customer data to create personalized email and SMS marketing campaigns that drive engagement, conversions, and long-term customer relationships.

How does Klaviyo improve email and SMS marketing?

Klaviyo allows businesses to segment audiences based on real customer behavior such as purchases, browsing activity, and engagement. This enables highly targeted email and SMS campaigns that reach customers with relevant messages at the right time.

What features does Klaviyo offer?

Klaviyo offers email and SMS marketing, advanced segmentation, automation workflows, real-time customer profiles, analytics and reporting, A/B testing, and deep integrations with e-commerce platforms. These features help businesses run data-driven and personalized marketing campaigns.

Is Klaviyo suitable for beginners?

Yes, Klaviyo is beginner-friendly while still being powerful. Its visual workflow builder, pre-built automation templates, and guided onboarding make it easy for new users to launch campaigns and grow into more advanced strategies over time.

Who should use Klaviyo and what benefits can they expect?

Klaviyo is ideal for e-commerce brands, online retailers, and digital marketers. Users can expect higher engagement rates, improved customer retention, increased revenue through personalization, better audience insights, and scalable marketing automation, helping them grow their business efficiently.

Reviewed · Updated 2026-06-19

Klaviyo

Klaviyo is a leading marketing automation platform purpose-built for e-commerce businesses, enabling personalized email and SMS campaigns.

Reviewed by the Conversion Gems editorial team · 2026-06-19

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Pricing

Freemium

Best for

e-commerce businesses

Community ratings

4.0/ 5 aggregate · across 2 sources

4.61,300+ reviews

Trustpilot

1.8360+ reviews

Third-party ratings shown verbatim; aggregate weighted by review volume.

What it really is

Klaviyo — e-commerce email and SMS marketing automation platform.

Our take

Klaviyo is the de-facto standard for e-commerce email and SMS marketing, with deep native integrations for Shopify, WooCommerce, Magento, and BigCommerce. It delivers best-in-class automated flows, behavioral segmentation, and revenue analytics. DB listed entry_price_usd as null; actual paid entry is $20/mo for 251–500 active profiles. Note: a significant February 2025 billing change now counts all active profiles (not just actively emailed contacts), which has raised effective costs for many brands.

Why we rate it

No other platform matches Klaviyo's depth of e-commerce data integration and its ability to trigger hyper-personalized flows from real purchase and browse behavior. Its analytics close the loop between campaign spend and revenue earned.

The catch

Billing now counts every active profile in your account (since Feb 2025), not just those you actively email — list hygiene directly impacts your bill. Costs scale sharply with list growth, and the interface has a steep learning curve for teams new to marketing automation.

Best for

E-commerce brands relying on Shopify, WooCommerce, or BigCommerce

Teams running complex multi-channel lifecycle automations (email + SMS)

Marketers who need revenue-attributed analytics and deep behavioral segmentation

Not good for

Non-e-commerce SaaS or B2B companies needing CRM-style lead nurturing

Budget-conscious small stores with large but low-engagement contact lists

Teams wanting a simple, low-overhead newsletter tool

Friction report

Time to value

Moderate: Shopify one-click sync is fast, but building effective flows and segments takes hours of setup and testing.

Scale breakpoint

Per-profile billing climbs steeply above 10K contacts; unengaged contacts must be suppressed proactively or they inflate the bill — and reactivated contacts cannot be re-suppressed for 90 days.

Walled garden

Moderate: data exports are available, but automation logic, templates, and audience segments live entirely within Klaviyo and require significant rebuild effort to migrate.

A look inside

Frequently Asked Questions

Alternatives

Step up

Klaviyo Enterprise for dedicated infrastructure, custom contracts, and advanced deliverability support.

Lighter alternative

Omnisend for simpler e-commerce email/SMS automation at lower per-contact costs.

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