Customer.io vs Klaviyo (Marketing): Complete Comparison (2026)
Updated: March 7, 20268 min read
VS
Quick Comparison
Customer.io
Klaviyo (Marketing)
Starting Price
$100/mo
$20/mo
Free Plan
No
Yes
Users
7.5K+ orgs
130K+ orgs
Founded
2012
2012
Rating
4.7/5
4.6/5
Best For
SaaS companies sending complex behavior-triggered ...
E-commerce stores wanting powerful behavioral mark...
Feature-by-Feature Comparison
Customer.ioKlaviyo (Marketing)
93Ease of Use94
98Features96
92Value for Money96
89Customer Support87
91Integrations89
92Mobile App90
AI Verdict
Customer.io leads with a ToolScout Score of 94 vs 92 for Klaviyo (Marketing). Customer.io is best suited for SaaS companies sending complex behavior-triggered lifecycle emails, while Klaviyo (Marketing) excels for E-commerce stores wanting powerful behavioral marketing automation. Both are strong options in the Marketing Automation space.
CHOOSE CUSTOMER.IO IF:
SaaS companies sending complex behavior-triggered lifecycle emails.
CHOOSE KLAVIYO (MARKETING) IF:
E-commerce stores wanting powerful behavioral marketing automation.
Frequently Asked Questions
Is Customer.io better than Klaviyo (Marketing)?
Customer.io scores 94/100 on ToolScout compared to Klaviyo (Marketing)'s 92/100. However, the best choice depends on your specific needs. Customer.io is best for SaaS companies sending complex behavior-triggered lifecycle emails. Klaviyo (Marketing) is best for E-commerce stores wanting powerful behavioral marketing automation.
Does Customer.io have a free plan?
No, Customer.io does not offer a free plan. Plans start from $100/mo.
Does Klaviyo (Marketing) have a free plan?
Yes, Klaviyo (Marketing) offers a free plan. Paid plans start from $20/mo.
Can I migrate from Customer.io to Klaviyo (Marketing)?
Migration between Customer.io and Klaviyo (Marketing) depends on the specific features you use. Both tools are in the Marketing Automation category. Check each tool's import/export options for data portability before switching.