Quick Answer
Pick Campaign Monitor if you're a designer, agency, or content-driven brand that needs elegant email templates, a low starting price, and Salesforce or WordPress integration.
Campaign Monitor
7/8
features
Klaviyo
8/8
features
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Campaign Monitor is an email marketing platform founded in 2004, built around polished template design and straightforward automation. Its tagline — "beautiful email marketing and automation for designers" — signals exactly who it serves: teams and agencies that prioritize visual branding in every send. Paid plans start at $9/month with no free tier. Klaviyo, launched in 2012, positions itself as a data-driven email and SMS marketing engine for e-commerce. It integrates deeply with online storefronts and leans on behavioral data to power segmentation and automation. Klaviyo offers a free plan and paid tiers starting at $20/month. It also includes an AI assistant, giving users help with content generation and optimization. Both platforms support automation workflows, mobile apps, and calendar-based scheduling, but they target distinctly different audiences.
Starting with pricing, Campaign Monitor is the cheaper entry point at $9/month, but it lacks a free tier. Klaviyo offers a free plan — useful for small stores testing the waters — though its paid plans begin higher at $20/month. For budget-conscious beginners who just need basic email campaigns, Campaign Monitor's lower starting price is attractive. For e-commerce operators willing to invest more as they scale, Klaviyo's free-to-paid ramp makes the initial commitment easier.
Both platforms support automation, mobile apps, file sharing, and calendar views. The standout differentiator on the feature side is Klaviyo's AI assistant, which Campaign Monitor does not offer. That AI layer can help draft subject lines, suggest send times, and surface insights from customer data — a genuine productivity advantage for lean marketing teams.
Integrations tell a clear story about each tool's sweet spot. Campaign Monitor connects with Shopify, WordPress, Zapier, Salesforce, and Magento. The Salesforce and WordPress integrations make it a solid fit for agencies managing diverse client sites and CRM-linked campaigns. Klaviyo integrates with Shopify, WooCommerce, BigCommerce, Zapier, and Magento — a roster that's squarely aimed at online stores. If your revenue flows through an e-commerce cart, Klaviyo's native connections are purpose-built for that workflow.
Campaign Monitor's two-decade track record (founded 2004) means a mature, stable product with well-documented templates. Klaviyo (founded 2012) is younger but has become the default recommendation in the Shopify ecosystem for a reason: its data model is built around purchase behavior, not just opens and clicks.
Our Verdict
Pick Campaign Monitor if you're a designer, agency, or content-driven brand that needs elegant email templates, a low starting price, and Salesforce or WordPress integration. Pick Klaviyo if you run an e-commerce store — especially on Shopify, WooCommerce, or BigCommerce — and want data-driven automation, SMS capabilities, an AI assistant, and a free plan to start with. Klaviyo costs more at scale but earns it back through tighter purchase-data integration.
Feature Comparison
| Feature | Campaign Monitor | Klaviyo |
|---|---|---|
| Visual Builder | ||
| A/B Testing | ||
| Analytics | ||
| Template Library | ||
| Scheduling | ||
| Mobile App | ||
| Email Automation | ||
| AI Assistant |
Visual Builder
A/B Testing
Analytics
Template Library
Scheduling
Mobile App
Email Automation
AI Assistant