Head-to-head
Customer.io vs Mail Rocket
Two leading email marketing tools, compared on pricing, features, and editorial fit. Updated for 2026.
Mail Rocket
Mail merge and bulk personalized email sending from Gmail and Google Sheets
From $9.99/mo
Visit Mail RocketAt a glance
| Customer.io | Mail Rocket | |
|---|---|---|
| Tagline | Messaging that actually fits your data. | Mail merge and bulk personalized email sending from Gmail and Google Sheets |
| Pricing model | Paid | Paid |
| Starts at | $100/mo | $9.99/mo |
| Founded | 2012 | — |
| AI-native | ||
| Categories | Email Marketing, Automation | Email Marketing |
| Vendor claimed |
Quick take
Pick Customer.io if you need messaging that actually fits your data. Pick Mail Rocket if you need mail merge and bulk personalized email sending from gmail and google sheets.
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Customer.io alternatives →
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Frequently asked
- Is Customer.io better than Mail Rocket?
- It depends on your use case. Customer.io is messaging that actually fits your data, while Mail Rocket is mail merge and bulk personalized email sending from gmail and google sheets. See the comparison above for which fits your team.
- What's the price difference between Customer.io and Mail Rocket?
- Customer.io starts at $100/mo. Mail Rocket starts at $9.99/mo.
- Can I migrate from Customer.io to Mail Rocket?
- Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.