Overview
Ontraport and Klaviyo serve completely different business models. Klaviyo dominates e-commerce email — if you run a Shopify store, it's probably on your shortlist. Ontraport serves course creators and coaches who want everything in one platform. For our take on each, see our Ontraport comparison and Klaviyo comparison.
E-commerce: Not Even Close
Klaviyo's e-commerce capabilities are in a different league. Deep Shopify and WooCommerce integration, real-time product recommendations, predictive customer lifetime value, browse abandonment triggers, and per-email revenue tracking. Ontraport has basic e-commerce features but nothing close to Klaviyo's depth. If you sell products online, this isn't a real comparison.
Service Business: Ontraport's Territory
If you sell courses, coaching, or consulting, Klaviyo isn't designed for you. Ontraport's membership sites, payment processing, CRM, and affiliate management are built for knowledge businesses. These are features Klaviyo doesn't have and likely won't add.
The Sequenzy Alternative
If you're building SaaS (not e-commerce, not courses), Sequenzy is built for subscription businesses with Stripe integration, transactional email, and AI-generated sequences at $49/month.