ActiveCampaign vs. Klaviyo: 2026 Comparison

Bottom line: ActiveCampaign and Klaviyo both deliver powerful marketing automation, but ActiveCampaign focuses on broad workflow automation and integrations, while Klaviyo excels in omnichannel personalization and advanced AI-driven insights.

Here’s what ActiveCampaign users like about this feature:

• Custom workflow creation

• Segmentation options

• Integration with Zapier and Shopify

• Reporting

• Customer behavior tracking

Here’s what Klaviyo users like about this feature:

• Using a visual editor to create and manage flows

• Options to create and refine trigger flows

• Prebuilt flows

Drawbacks: 

• ActiveCampaign users mention a learning curve and occasional issues with automation not working as expected

• Klaviyo users note potential deployment issues when making frequent changes in a flow

Marketing automation for ActiveCampaign:

Of the 82 reviewers who gave detailed accounts of their use of marketing automation, 99% rated this feature as important or highly important.

Marketing automation for Klaviyo:

Based on 15 reviewers who gave detailed accounts of their use of marketing automation, 100% rated this feature as important or highly important.

The gist: ActiveCampaign offers more campaign variety and templates, while Klaviyo leads in segmentation and AI-powered optimization.

Here’s what ActiveCampaign users like about this feature:

• Ability to segment, track, and automate follow-ups

• The visual editor and pre-built templates

Here’s what Klaviyo users like about this feature:

• Visual calendar feature

• A/B testing

• Real-time metrics tracking

• Block-based templates

• Segmentation features

Drawbacks: 

• ActiveCampaign users note that reporting and analytics could be more detailed, and there are occasional issues with deliverability and customer support responsiveness 

• Klaviyo users cite limitations, such as the need to create lists for individual recipients and cloning campaigns to add more lists/segments

Email campaign management for ActiveCampaign:

Among the 125 reviewers who gave detailed accounts of their use of email campaign management, 98% rated this feature as important or highly important. 

Email campaign management for Klaviyo:

Of the 37 reviewers who gave detailed accounts of their use of email campaign management, 97% rated this feature as important or highly important.

Here’s the takeaway: ActiveCampaign offers more control with tags and groups, while Klaviyo’s unified data platform powers deeper personalization through advanced AI insights.

Here’s what ActiveCampaign users like about this feature:

• Ability to import, organize, and update contact information functions

• The feature is essential for maintaining customer relationships

Here’s what Klaviyo users like about this feature:

• Customer interaction data unification

• Segmentation capabilities

Drawbacks: 

• ActiveCampaign users find the automation workflows complex and the CRM functionality somewhat limited

• Klaviyo users report issues with contacts being overwritten and concerns about GDPR compliance with the Shopify plugin

Contact database for ActiveCampaign:

Based on the 62 reviewers who gave detailed accounts of their use of the contact database, 97% rated this feature as important or highly important.

Contact database for Klaviyo:

Among the 10 reviewers who gave detailed accounts of their use of the contact database, 90% rated this feature as important or highly important.