Act-On vs Klaviyo (Marketing): Complete Comparison (2026)
In comparing Act-On and Klaviyo (Marketing) in 2026, Klaviyo (Marketing) is the stronger choice for e-commerce stores wanting powerful behavioral marketing automation due to unmatched e-commerce data. Act-On excels for mid-market b2b companies wanting dedicated marketing automation beyond email with good for mid-market b2b. Act-On offers Lead nurturing, Email marketing, Landing pages starting at $900/mo. Klaviyo (Marketing) provides Behavioral automation flows, SMS marketing, Segmentation from $20/mo with a free tier. For teams prioritizing value, Klaviyo (Marketing) delivers a hiltonsoftware Score of 76/100. Act-On and Klaviyo (Marketing) compete in the marketing automation segment of the SaaS market, where cloud-native solutions, API integrations, and workflow automation drive enterprise and SMB adoption. Other leading marketing automation tools include HubSpot Marketing, Marketo, Pardot. Act-On serves 4K+ orgs users globally (founded 2008) while Klaviyo (Marketing) reports 130K+ orgs active users (founded 2012).
Act-On vs Klaviyo (Marketing) at a Glance
What are the main differences between Act-On and Klaviyo (Marketing)?
Act-On and Klaviyo (Marketing) differ across ease of use, features, value, support, integrations, scalability, and learning curve. Klaviyo (Marketing) leads in 7 of 7 categories.
What are the pros and cons of Act-On vs Klaviyo (Marketing)?
Which is better, Act-On or Klaviyo (Marketing)?
After evaluating Act-On and Klaviyo (Marketing) across features, pricing, integrations, and user satisfaction, Klaviyo (Marketing) earns a higher hiltonsoftware Score of 76/100 versus Act-On at 61/100. Klaviyo (Marketing) stands out for "unmatched e-commerce data" and "deep shopify integration". Act-On delivers competitive advantages in "good for mid-market b2b", making Act-On a viable alternative.
On pricing, Klaviyo (Marketing) offers a free plan for SMBs and startups. Act-On starts at $900/mo with no free tier, but justifies the cost with lead nurturing and email marketing and enterprise-grade scalability.
Bottom line: Choose Act-On for mid-market b2b companies wanting dedicated marketing automation beyond email. Choose Klaviyo (Marketing) for e-commerce stores wanting powerful behavioral marketing automation. Both Act-On and Klaviyo (Marketing) are established marketing automation platforms.
Mid-market B2B companies wanting dedicated marketing automation beyond email.
E-commerce stores wanting powerful behavioral marketing automation.
Act-On vs Klaviyo (Marketing): Frequently Asked Questions
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Reviewed by Marcus Johnson, Marketing & Growth Specialist. Last updated: 2026-04-24. Pricing verified: March 2026.
Read our scoring methodology to understand how the hiltonsoftware Score is calculated.