MHMartechHunt

Head-to-head

Customer.io vs Vocus.io

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
Vocus.io logo
Vocus.io

Email tracking, follow-ups, and mass email campaigns for Gmail

From $5/mo
Visit Vocus.io

At a glance

 Customer.ioVocus.io
TaglineMessaging that actually fits your data.Email tracking, follow-ups, and mass email campaigns for Gmail
Pricing modelPaidPaid
Starts at$100/mo$5/mo
Founded2012—
AI-native
CategoriesEmail Marketing, AutomationSales Engagement, Email Marketing, CRM
Vendor claimed

Quick take

Pick Customer.io if you need messaging that actually fits your data. Pick Vocus.io if you need email tracking, follow-ups, and mass email campaigns for gmail.

Browse more

Customer.io alternatives →

Browse more

Vocus.io alternatives →

Frequently asked

Is Customer.io better than Vocus.io?
It depends on your use case. Customer.io is messaging that actually fits your data, while Vocus.io is email tracking, follow-ups, and mass email campaigns for gmail. See the comparison above for which fits your team.
What's the price difference between Customer.io and Vocus.io?
Customer.io starts at $100/mo. Vocus.io starts at $5/mo.
Can I migrate from Customer.io to Vocus.io?
Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.