Our take
Pick Customer.io if lifecycle teams who will start on Essentials at $100 / month (5k profiles, 1 million emails) while they open a first Consent state, then book Premium at $1,000 / month yearly when they want custom volume and HIPAA. Pick Klaviyo if ecommerce / lifecycle teams who will stay on Free at $0 (250 profiles, 500 emails / month, $5 mobile, $5 Composer) while they open a first campaign, then pay the usage
Best for
Customer.io Profiles, workflows, and consent you can price from $100
Klaviyo Emails you compose from a template library
Free plan
Customer.io No free plan
Klaviyo $0 · up to 250 profiles. 500 emails / month. $5 of mobile messages / month. $5 of Composer usage / month. Built-in reporting. Email support. Web forms and drag-and-drop editor on the Free highlights
Lowest paid
Customer.io Premium $1/mo yearly
Klaviyo Not published by the vendor
Next step up
Customer.io Essentials $100
Klaviyo
Coding agent
Customer.io Workflows
Klaviyo
Runs where
Customer.io Hosted
Klaviyo Hosted
Watch out
Customer.io Essentials $100 is a starting tile for 5k profiles
Klaviyo Free caps at 250 profiles and 500 emails / month
Last checked
Customer.io 2026-10-23 · customer.io/pricing
Klaviyo 2026-10-23 · klaviyo.com/pricing
lifecycle teams who will start on Essentials at $100 / month (5k profiles, 1 million emails) while they open a first Consent state, then book Premium at $1,000 / month yearly when they want custom volume and HIPAA.
Read the Customer.io pageecommerce / lifecycle teams who will stay on Free at $0 (250 profiles, 500 emails / month, $5 mobile, $5 Composer) while they open a first campaign, then pay the usage calculator on the same pricing page once profile count leaves the Free cap.
Read the Klaviyo page
