Mailchimp vs Klaviyo
Mailchimp and Klaviyo serve overlapping markets but have diverged significantly in recent years. Mailchimp has broadened into an all-in-one marketing platform. Klaviyo has doubled down on data-driven email and SMS for e-commerce. If you are choosing between them, the decision often comes down to whether you sell products online or market services.
Last updated: 10 April 2026
Mailchimp
Established email marketing platform that has expanded into a full marketing suite with landing pages, social posting, websites, and basic CRM.
Service businesses, content creators, and small teams wanting email + basic marketing in one tool
Free up to 500 contacts. Essentials from £9.50/month. Standard from £14.50/month. Premium from £276/month.
Klaviyo
Data-first email and SMS platform built for e-commerce. Known for deep Shopify integration, predictive analytics, and revenue-attributed flows.
E-commerce brands on Shopify, WooCommerce, or BigCommerce who want revenue-driven email and SMS automation
Free up to 250 contacts. Email from $20/month. Email + SMS from $35/month. Scales with list size.
Feature Comparison
| Feature | Mailchimp | Klaviyo |
|---|---|---|
| E-commerce Integration | Basic — limited product data | Deep — real-time sync, browse/cart events |
| Automation Builder | Good — pre-built journeys | Excellent — conditional splits, A/B in flows |
| Segmentation | Basic conditions | Behavioural + predictive + purchase-based |
| Revenue Attribution | Limited | Per-email, per-flow, per-campaign |
| SMS | Via add-on | Built-in, unified with email |
| Free Tier | 500 contacts, 1K sends/month | 250 contacts, 500 sends/month |
| Deliverability | Good — shared IPs on lower plans | Excellent — dedicated IPs available |
| A/B Testing | Subject line + send time | Subject, content, send time, and within flows |
Mailchimp
Strengths
- +Generous free tier for small lists
- +Easy to learn — minimal technical skill required
- +Built-in landing page and website builder
- +Good template library and drag-and-drop editor
Weaknesses
- −Automation capabilities lag behind Klaviyo significantly
- −Segmentation is basic — limited to simple conditions
- −E-commerce integrations are surface-level compared to Klaviyo
- −Pricing increases sharply once you exceed contact limits
Klaviyo
Strengths
- +Best-in-class e-commerce integrations — Shopify data syncs in real time
- +Predictive analytics (CLV, churn risk, next purchase date)
- +Revenue attribution per email, flow, and campaign
- +Advanced segmentation using purchase behaviour and browsing data
Weaknesses
- −Steeper learning curve — more powerful but more complex
- −Expensive at scale — costs rise fast above 10K contacts
- −Less useful for non-e-commerce businesses
- −Template editor is functional but not as polished as Mailchimp
Our Verdict
Klaviyo is the clear winner for e-commerce — its Shopify integration, predictive analytics, and revenue attribution are in a different league. Mailchimp is better for service businesses, content creators, and teams that need a simple, affordable all-in-one. If you sell products online and are still on Mailchimp, switching to Klaviyo typically pays for itself within 90 days through better automation and segmentation.
We help e-commerce and SaaS teams set up email automation that drives measurable revenue.
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