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Customer.io vs Klaviyo

An independent, side-by-side comparison of two Marketing Automation providers — scores, pricing, company-size fit, and strengths — to help you pick the right one.

Customer.io vs Klaviyo at a glance

Editorial sub-scores are RankedVendors estimates.

Customer.ioKlaviyo
Overall score76/10089/100
TierStandardElite
Capability (editorial)7891
Ease of use (editorial)7490
Value (editorial)7387
Best forSmall business, Mid-market, EnterpriseSmall business, Mid-market, Enterprise
Pricing modelQuote-basedQuote-based
Headquarters
Founded

Verdict

Klaviyo is the higher-ranked of the two on RankedVendors (89/100 vs 76/100), but both are credible Marketing Automation options. Customer.io fits small business, mid-market, enterprise; Klaviyo fits small business, mid-market, enterprise. Match the shortlist to your size and must-have features, and trial before committing.

Where each one stands out

Customer.io

Customer.io is behavior-driven messaging automation.

Best for: Small business, Mid-market, Enterprise

Read Customer.io review

Klaviyo

Klaviyo automates multi-channel campaigns and lead nurturing.

Best for: Small business, Mid-market, Enterprise

Read Klaviyo review

Customer.io vs Klaviyo — FAQ

Is Customer.io better than Klaviyo?

On RankedVendors, Klaviyo scores 89/100 versus Customer.io's 76/100, so Klaviyo ranks higher overall in Marketing Automation. The right choice still depends on your size, budget, and must-have features — see the breakdown above.

What is the difference between Customer.io and Klaviyo?

Customer.io is behavior-driven messaging automation. Klaviyo automates multi-channel campaigns and lead nurturing. Both compete in Marketing Automation; compare their strengths and best-fit company sizes above.

Which is better value, Customer.io or Klaviyo?

Our editorial value scores put Customer.io at 73/100 and Klaviyo at 87/100. Customer.io is Quote-based; Klaviyo is Quote-based. Request quotes from both to compare against your scale.