Klaviyo vs Mailchimp: pricing, features and which to choose

Klaviyo is a B2C CRM and ecommerce marketing platform founded in 2012 by Andrew Bialecki and Ed Hallen. The company says more than 205,000 brands use its products, and it trades publicly on the New York Stock Exchange under KVYO. Its catalog includes email, mobile messaging, Reviews, Customer Hub, Helpdesk, Customer Agent, Composer, Data Platform, and Analytics. That range makes Klaviyo broader than an email sender, although ecommerce marketing remains its clearest center. Its strongest identity is a customer data and automation system for brands that sell directly to consumers online. The company says it began as a customer database, added email marketing in 2013, SMS in 2021, Reviews and a CDP in 2023, and a unified B2C CRM in 2025.

Klaviyo connects an online store and other first-party sources, then unifies customer profiles with behavioral events. Teams build segments, campaigns, and event-triggered flows, send through email or mobile channels, and measure revenue attribution. Klaviyo lists Shopify, Salesforce Commerce Cloud, and WooCommerce integrations, while its 2024 filing described more than 350 integrations as of 2023. Typical journeys include abandoned-cart reminders, post-purchase messages, replenishment prompts, and targeted promotions. Product activity and predictive analytics can influence audience selection and send timing. The system depends on clean event data and thoughtful profile design, making implementation more demanding than a basic newsletter tool. Marketers can connect browsing, purchase, engagement, and service signals to coordinated messages, then examine reported revenue.

Klaviyo’s limits are operational as well as financial. Reachable-profile growth can increase recurring costs, while separately billed products make the total harder to estimate than a single-channel plan. Its AI features require customer review, and necessary prompts or data may be sent to providers to generate requested outputs. Klaviyo says provider contracts prohibit global-model training on customer data, while its policy describes controls that depend on applicable products, settings, contracts, and provider terms. Mailchimp is broader for general small-business marketing, ActiveCampaign is a close automation alternative, and Omnisend also targets ecommerce brands. Klaviyo offers deeper behavioral ecommerce segmentation and revenue attribution than many newsletter-focused tools, but requires better data discipline and a larger budget as reachable profiles grow. Pick Klaviyo when behavioral ecommerce data, profile-based journeys, and revenue reporting matter more than the lowest setup cost.

Mailchimp is an active email marketing and automation platform owned by Intuit, which completed its acquisition on November 1, 2021. Ben Chestnut and Dan Kurzius founded the company in Atlanta in 2001. Intuit reported consideration of approximately $5.7 billion in cash, 10.1 million Intuit shares valued at about $6.3 billion at the then closing price, plus employee RSUs. Mailchimp says 13 million global users and more than 1,500 employees use or support the service, although those are company-published figures. The platform targets small and mid-market businesses with email, SMS, forms, websites, advertising, analytics, ecommerce integrations, and connections to Intuit products. Its broad scope makes it a general-purpose marketing suite rather than a narrowly focused email sender.

A typical Mailchimp workflow begins with importing contacts or building an audience through forms. Users design email campaigns with templates or the editor, segment contacts, schedule sends, or create Marketing Automation Flows with triggers and branching steps. Ecommerce, social, and advertising connections add customer and campaign data, while reporting covers engagement, revenue, and custom metrics on eligible plans. Mailchimp’s pricing table lists more than 300 integrations. SMS is available in selected markets after application approval and requires purchased credit blocks. This workflow supports newsletters, promotions, lead capture, and ecommerce campaigns in one hosted application. The tradeoff is breadth rather than maximum depth: teams receive common email, form, website, advertising, analytics, and automation functions without adopting separate tools for each task.

Mailchimp becomes more expensive as a list grows or retains inactive records, because unsubscribed and non-subscribed contacts count toward contact limits. Its AI terms also permit processing inputs and outputs to develop and improve AI models and services, subject to settings and applicable terms. Klaviyo is stronger for ecommerce events, profile segmentation, and revenue-focused journeys, while ActiveCampaign offers deeper automation. Brevo is more budget-oriented for high-volume messaging. Mailchimp remains broader and easier for general SMB campaigns, newsletters, forms, and ecommerce connections, but teams needing advanced behavioral data or highly granular automation may outgrow it. Small and mid-market marketing teams seeking an accessible general-purpose platform should pick Mailchimp.