Compare: Constant Contact vs Customer.io

A side-by-side analysis to help you find the right tool.

Constant Contact

Paid(Under $50/mo)

Yes (60-day free trial)

Paid($50–$200/mo)

Yes (free trial available)

Budget Tier

Constant ContactUnder $50/mo

Customer.io$50–$200/mo

Free Trial

Constant ContactYes (60-day free trial)

Customer.ioYes (free trial available)

Company Size Fit

Constant ContactSolo / Freelancer, Small Team (2–20)

Customer.ioSmall Team (2–20), Mid-Market (20–200)

Target Channels

Constant ContactEmail Lists

Customer.ioEmail Lists, Website Visitors, Existing Customers

Best For

Constant ContactVery small businesses and nonprofits wanting simplicity

Customer.ioSaaS and product-led growth (PLG) companies needing event-driven behavioral messaging

Pros

Constant Contact

Customer.io

Unmatched ability to trigger messages based on exactly what users do *inside* a software product
developer-friendly
excellent visual builder

Cons

Constant Contact

Customer.io