Klaviyo vs Marketo Engage

Business model and audience

Klaviyo and Marketo target opposite ends of marketing. Klaviyo, based in Boston, is a B2C customer platform built for ecommerce and retail, unifying storefront, order, and behavioural data; it reported roughly $1.23 billion in 2025 revenue and added AI marketing and customer agents that year. Marketo Engage, part of Adobe, is an enterprise B2B automation platform for demand generation and account-based marketing. A buyer rarely weighs them for the same project: the decision is upstream, about whether the company sells primarily to consumers through a storefront or to businesses through a sales-led pipeline.

Data and channels

Klaviyo centres on shopper behaviour, with native email and SMS, catalogue and reviews tooling, predictive lifetime value and churn metrics, and a deep Shopify integration extended in 2026. Marketo centres on the B2B lead and account, with behavioural scoring, program orchestration, dynamic content, and attribution feeding Salesforce or Microsoft Dynamics and Adobe Experience Cloud. For consumer retention flows such as abandoned cart and post-purchase, Klaviyo's model fits directly. For multi-stage nurture across a long B2B buying committee, Marketo's scoring and program logic are the relevant strengths.

Pricing model

Klaviyo bills on active profiles, with a free tier to 250 profiles, an Email plan from about $20 per month, and an Email plus SMS plan from about $35 per month; costs rise with audience size and the 2025 shift to active-profile billing increased spend for some accounts. Marketo pricing is custom across Growth, Select, Prime, and Ultimate editions, commonly from roughly $895 to $3,200 or more per month depending on database size and modules, with attribution and predictive features adding cost. Pricing verified June 2026; enterprise pricing requires a quote. Klaviyo is far cheaper to start and self-serve; Marketo is an enterprise contract.

Fit and scale

Klaviyo fits B2C and ecommerce brands of all sizes that prioritise retention, revenue per recipient, and fast setup, and that operate without a complex B2B sales process. Marketo fits mid-market and enterprise B2B teams with defined demand generation, a CRM in place, and staff to run scoring and nurture programs. Klaviyo is not built for B2B pipeline management, and Marketo is not built to be a high-volume ecommerce engine, so fit is determined more by business model than by company size alone.

Implementation and skills

Klaviyo is typically live within days to a few weeks, especially on Shopify, and can be administered by a marketer without specialist certification. Marketo implementations usually run several weeks to months and involve a certified consultant or dedicated administrator to configure scoring, programs, CRM sync, and attribution, with a steep learning curve and ongoing maintenance. The resourcing difference is significant: Klaviyo is designed for self-serve operation, while Marketo is designed for a marketing operations function.

What buyers say

Buyers frequently note that Klaviyo is fast to deploy for ecommerce, with purchase-aware segmentation and pre-built flows that make retention marketing straightforward and revenue attribution clear, though they also report rising costs after the active-profile billing change and a B2C focus that limits B2B use. Marketo users frequently highlight powerful lead scoring, program orchestration, and attribution, alongside deep CRM and Adobe integration, while citing a steep learning curve, a dated interface in places, and high total cost once add-ons are included. Across both products, sentiment tracks their distinct markets: consumer brands value Klaviyo for ecommerce fit and enterprise B2B teams value Marketo for funnel depth, and dissatisfaction usually appears when a buyer selects the tool that does not match their go-to-market model.

When to choose Klaviyo

Choose Klaviyo if you run a B2C or ecommerce brand and need purchase-aware segmentation, native email and SMS, and fast setup, particularly on Shopify. It is the better fit for online retailers focused on abandoned-cart, post-purchase, and win-back flows, and for teams that want self-serve operation and clear revenue attribution rather than a complex enterprise automation platform with a marketing operations overhead.

When to choose Marketo Engage

Choose Marketo Engage if you run enterprise B2B demand generation with long sales cycles and a buying committee, need behavioural lead scoring, nurture orchestration, and multi-touch attribution, or are standardising on Adobe Experience Cloud. It is the better fit for mid-market and enterprise teams with a CRM in place and the staff and budget to configure and maintain a sophisticated platform over time.

Related comparison

For an adjacent decision in marketing automation, see our independent HubSpot Marketing Hub vs Marketo Engage analysis, which covers overlapping selection criteria for buyers shortlisting these platforms.

Alternatives to both