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Head-to-head

Customer.io vs Popup Maker

Two leading email marketing 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
Popup Maker logo
Popup Maker

WordPress popup plugin for email opt-ins and sales conversions

From Free
Visit Popup Maker

At a glance

 Customer.ioPopup Maker
TaglineMessaging that actually fits your data.WordPress popup plugin for email opt-ins and sales conversions
Pricing modelPaidFreemium
Starts at$100/moFree
Founded2012—
AI-native
CategoriesEmail Marketing, AutomationEcommerce Platforms, Email Marketing, CRO & Testing
Vendor claimed

Quick take

Pick Customer.io if you need messaging that actually fits your data. Pick Popup Maker if you need wordpress popup plugin for email opt-ins and sales conversions.

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Customer.io alternatives →

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Popup Maker alternatives →

Frequently asked

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