Side-by-side record

Klaviyo vs. MailerLite

A side-by-side view of the product records we have today. Use it to narrow the question, then confirm current pricing, limits, and security details with each vendor.

The short version

Klaviyo starts at Free per seat, versus MailerLite at Free. MailerLite carries the higher aggregate rating (4.7/5 vs 4.6/5). Klaviyo lists more integrations (350+ vs 130+).

Full comparison

	Klaviyofrom Free	MailerLitefrom Free
Audyense Score	86ASExcellent	86ASExcellent
Positioning	Ecommerce email, SMS, and marketing automation built on real-time customer data.	Affordable email marketing for creators and small businesses
Free tier	Yes	Yes
Deployment	Cloud / SaaS	Cloud / SaaS
Best fit	Startup, SMB, Mid-market, Enterprise	Startup, SMB, Mid-market
Pricing plans	FreeFree Email$20 Email + SMS$35	FreeFree Comfort$12 Power$25 EnterpriseFree
A/B testing	YesAcross campaigns, flows, subject lines, and forms.	YesA/B split testing for campaigns and subject lines.
AI features	YesPredictive analytics, subject-line generation, send-time optimization, and AI agents.	YesAI writing assistant and subject line generator.
Audience segmentation	YesReal-time behavioral and dynamic segments.	YesSegments, groups, and interest-based targeting.
Campaign analytics	YesBenchmarks, multi-touch attribution, and revenue tracking.	YesReporting and analytics; less depth than enterprise tools per reviewers.
Email marketing	Yes	YesCore product: campaigns, newsletters, drag-and-drop editor.
Landing pages & forms	PartialStrong signup forms and popups, but no standalone landing-page builder.	YesLanding page builder, signup forms, and pop-ups included.
Marketing automation	YesVisual automated flows with triggers, conditions, and splits.	YesVisual automation workflows; advanced multi-branch logic is limited.
Public API	YesDocumented REST API, client-side APIs, and webhooks.	YesPublic REST API and developer documentation available.
SMS marketing	YesNative SMS/MMS with automations and two-way messaging.	NoNo native SMS; possible only via third-party integrations.
Social media management	NoSyncs audiences to Meta/Google ads only; no organic social posting.	NoNo native social posting/scheduling; only Facebook audience/lead ad sync.
Integrations verified	350+	130+
Aggregate rating	4.6 · 1.4k reviews	4.7 · 2.3k reviews
Integrations	ShopifyWooCommerceBigCommerceAdobe Commerce (Magento)Salesforce Commerce CloudWix+9 more	ShopifyWooCommerceWordPressZapierStripeCanva+8 more
Security & compliance	SOC 2ISO 27001ISO 27017PCI DSS+2 more	GDPRISO 27001PCI DSS
Pros	Best-in-class real-time ecommerce data sync. Extremely powerful, granular behavioral segmentation. Strong automation flows and detailed attribution reporting. Predictive analytics (CLV, churn risk, next order) across paid tiers.	Intuitive, clean drag-and-drop interface that's easy to learn Strong value for money compared to competitors like Mailchimp Responsive, well-regarded customer support All-in-one: campaigns, automations, landing pages, forms, and a website builder
Cons	Pricing scales aggressively as contact lists grow. 2025 active-profile billing change raised many customers’ bills. Steep learning curve for newcomers. You pay for cold and suppressed profiles.	Automation and reporting are less advanced than enterprise-grade tools Free plan is limited (250 subscribers, capped automation steps, 14-day support) Deliverability rated as middling by some reviewers Template and customization options can feel limited for advanced users
	Visit Klaviyo ↗	Visit MailerLite ↗

Editorial read of this comparison

The table summarizes structured facts; this section explains what the differences mean for a real buying decision.

Where each tool fits, and where it may not

Klaviyo

Klaviyo is a cloud marketing automation and B2C CRM platform built for ecommerce brands. It unifies real-time customer data from stores like Shopify and WooCommerce to power segmented email, SMS, and push campaigns, automated flows, and predictive analytics. Public since 2023 (NYSE: KVYO), it has grown into an omnichannel platform with built-in AI.

A particularly good fit for: Ecommerce and D2C brands on Shopify, WooCommerce, or BigCommerce. Teams wanting advanced behavioral segmentation and automation in one platform. Merchants running combined email + SMS retention marketing.

May be a poor fit if: Budget-sensitive teams or those with large low-engagement lists. B2B or non-commerce teams needing a sales CRM or social media management.

MailerLite

MailerLite is a cloud-based email marketing platform offering campaigns, automations, landing pages, signup forms, and a website builder through a clean drag-and-drop interface. Founded in 2010 and based in Vilnius, Lithuania, it targets solopreneurs, creators, and small-to-mid-sized businesses that want powerful email tools without complexity. It is widely positioned as a simpler, cheaper alternative to Mailchimp.

A particularly good fit for: Solopreneurs and creators sending newsletters on a budget Small teams wanting simple automations without a learning curve Businesses migrating away from more complex/expensive tools like Mailchimp

May be a poor fit if: Enterprises needing highly complex, multi-branch automation workflows Teams requiring native SMS marketing or social media management

Pricing and plan structure

Klaviyo: Published starting price Free

FreeFree
Email$20 per month (up to 500 contacts)
Email + SMS$35 per month (up to 500 contacts)

MailerLite: Published starting price Free

FreeFree
Comfort$12 per month
Power$25 per month
EnterpriseFree

Capabilities worth validating

Klaviyo: A/B testing, AI features, Audience segmentation, Campaign analytics, Email marketing Integrations include Shopify, WooCommerce, BigCommerce, Adobe Commerce (Magento).
MailerLite: A/B testing, AI features, Audience segmentation, Campaign analytics, Email marketing Integrations include Shopify, WooCommerce, WordPress, Zapier.

Questions to answer before switching

Does Klaviyo's selected plan include the features and limits we need?
Does MailerLite's selected plan include the features and limits we need?
Does the exact integration path for Shopify, WooCommerce, BigCommerce support the sync direction, permissions, and volume we need?
Is a hosted-only deployment acceptable for the team and customers who will use this system?

How to evaluate this shortlist

A useful comparison turns the differences between Marketing tools into a concrete test. Use these steps to avoid choosing from a feature table or the lowest headline price alone.

Start with a representative Marketing workflow, not a feature checklist. Define who will use it, what data goes in, and what outcome the team needs.
Test the complete path through Shopify, WooCommerce, BigCommerce: permissions, sync direction, failure handling, and volume limits often matter more than the integration name.
Compare the cost of the real scenario, including users, usage, storage, support, and contract requirements. The entry price alone does not measure adoption cost.
Before switching, list the evidence gaps, request a demo of the critical workflow, and confirm security, data residency, export, and support with each vendor.

Structured signals help narrow the shortlist, but a trial with a real workflow is still the best way to validate the decision.

Research basis

Last checked: 2026-07-21. Pricing, integrations, feature support, and review signals can change, so treat this as a research snapshot and verify the final decision with the vendor.

Sources consulted: Klaviyo product site, G2, Capterra; MailerLite product site, Capterra, G2