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Head-to-head

Customer.io vs Keap

Two leading email marketing / automation tools, compared on pricing, features, and editorial fit. Updated for 2026.

Customer.io logo
Customer.io

Messaging that actually fits your data.

From $100/mo
Visit Customer.io
Keap logo
Keap

CRM and marketing/sales automation for small businesses

From $320/mo
Visit Keap

At a glance

 Customer.ioKeap
TaglineMessaging that actually fits your data.CRM and marketing/sales automation for small businesses
Pricing modelPaidPaid
Starts at$100/mo$320/mo
Founded2012—
AI-native
CategoriesEmail Marketing, AutomationEmail Marketing, CRM, Automation
Vendor claimed

Quick take

Pick Customer.io if you need messaging that actually fits your data. Pick Keap if you need crm and marketing/sales automation for small businesses.

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Customer.io alternatives →

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Keap alternatives →

Frequently asked

Is Customer.io better than Keap?
It depends on your use case. Customer.io is messaging that actually fits your data, while Keap is crm and marketing/sales automation for small businesses. See the comparison above for which fits your team.
What's the price difference between Customer.io and Keap?
Customer.io starts at $100/mo. Keap starts at $320/mo.
Can I migrate from Customer.io to Keap?
Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.