Independent comparison for enterprise buyers. Updated May 2026.
Quick verdict: Choose ActiveCampaign for B2B and service businesses that need broad automation, a built-in sales CRM, and cross-channel marketing beyond pure transactional email. Choose Klaviyo for direct-to-consumer e-commerce brands where product, order, and behavioural data must drive personalised email and SMS at scale. The key differentiator is data model: ActiveCampaign optimises for contact-centric B2B automation; Klaviyo optimises for product-and-order-centric e-commerce personalisation.
| Criteria | ActiveCampaign | Klaviyo |
|---|---|---|
| Editorial score | 4.5 / 5.0 | 4.6 / 5.0 |
| Deployment | Multi-tenant SaaS | Multi-tenant SaaS |
| Pricing Model | Subscription, contact tier, list pricing published | Subscription, contact tier, list pricing published |
| Target Buyer | SMB and mid-market B2B, services, online education | D2C e-commerce, retail, beauty, consumer brands |
| Implementation | 2–6 weeks typical | 2–4 weeks typical with Shopify connector |
| Customisation | Visual automation, conditional logic, custom fields | Flows builder, segmentation by product and behaviour |
| Ecosystem | 900+ integrations including Salesforce, Dynamics | 350+ integrations, deepest Shopify and BigCommerce |
| Key Strength | B2B automation depth with built-in sales CRM | E-commerce data model and SMS plus email parity |
ActiveCampaign is built around contact-centric automation with four product lines: Marketing, Sales, Service, and Commerce. The visual automation builder supports nested conditions, split testing inside workflows, goal tracking, and event-based triggers. Lead scoring, tagging, and a built-in Sales CRM make it suitable for B2B and service businesses without a separate CRM investment. The platform's strength is breadth: it covers email, SMS, site messaging, and conversational marketing across both consumer and B2B use cases.
Klaviyo is purpose-built for e-commerce. The data model centres on customers, products, orders, and events synchronised directly from Shopify, BigCommerce, Magento, and Salesforce Commerce Cloud. Flows trigger on cart abandonment, browse abandonment, post-purchase, win-back, and predictive lifecycle events such as expected next-purchase date. Segmentation can reference product attributes, lifetime value, predicted churn risk, and recency-frequency-monetary scores natively, without requiring a separate customer data platform.
SMS capability is a meaningful differentiator. Klaviyo SMS is fully integrated into the same flows and segments as email, with native phone number collection, compliance features, and unified reporting. ActiveCampaign offers SMS as an add-on with workflow integration but generally lacks Klaviyo's depth on US carrier compliance and short-code provisioning. For brands where SMS revenue exceeds 15 to 20 per cent of marketing-attributed revenue, Klaviyo's tighter integration tends to be the deciding factor.
On AI and predictive features, both vendors offer generative content tools, predictive sending, and predictive analytics. Klaviyo's AI features focus on e-commerce: predicted CLV, churn risk, gender prediction, and automated benchmarks against anonymised Shopify peer cohorts. ActiveCampaign's AI focuses on automation generation, win probability for sales deals, and content suggestion. The choice rarely hinges on AI alone but rather on the underlying data model fit.
ActiveCampaign publishes list pricing across Lite, Plus, Professional, and Enterprise tiers, scaling by contact count and feature set. As of May 2026, Lite starts at approximately $15 per month for 1,000 contacts; Professional starts at approximately $79 per month for 1,000 contacts and increases with list size. The Sales CRM is included from the Plus tier upward. SMS, transactional email, and certain integrations price separately as add-ons.
Klaviyo publishes list pricing tied to active profile count and SMS message volume. As of May 2026, email pricing starts free up to 250 contacts and 500 emails, then scales at approximately $45 per month for 5,000 contacts up to several thousand dollars per month for 250,000+ contacts. SMS pricing is metered by message and segment, with the cost structure favouring high-engagement lists. A recognised buying-side caveat is rapid cost growth as profile counts scale, particularly for high-traffic e-commerce sites that capture browse events from unauthenticated visitors. Both vendors charge for inactive contacts unless they are archived.
Choose ActiveCampaign when the business model is B2B, professional services, online education, or a hybrid B2B-B2C model that requires both marketing automation and a sales pipeline. It is a strong fit for organisations consolidating away from separate email and CRM tools, those with $5M to $100M revenue, and teams that value automation breadth over e-commerce-specific depth. Existing users of Salesforce or HubSpot may still prefer ActiveCampaign when seeking lower-cost automation alongside an existing CRM.
Choose Klaviyo when the business is direct-to-consumer e-commerce, particularly on Shopify, BigCommerce, or Salesforce Commerce Cloud, and when product, order, and browse behaviour drive most segmentation and personalisation. It is the consensus choice for D2C brands with $1M to $500M revenue across beauty, apparel, food and beverage, and home goods. Brands prioritising SMS as a revenue channel, predictive lifetime value, or product-recommendation flows typically find Klaviyo's data model worth the per-profile cost.
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