# Klaviyo vs Customer.io

This is the classic ecommerce-vs-SaaS decision. Klaviyo is built around orders and product data; Customer.io is built around arbitrary in-product events. Picking the wrong one means months of workarounds.

| | klaviyo | customerio |
|---|---|---|
| Best for | Ecommerce (Shopify, Woo) | SaaS, B2B, product-led |
| Data model | Profiles + order data | People + custom events |
| Native ecommerce | Deep | Custom integration required |
| In-app messaging | No | Yes |
| Predictive analytics | Strong (CLV, churn) | Event-based segmentation |
| Entry price | $20/mo (500 contacts) | ~$100/mo (5,000 people) |

**Canonical:** https://emailcanary.co/compare/klaviyo-vs-customerio

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