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Email Marketing

Customer.io vs MJML: Pricing Comparison 2026

Side-by-side pricing comparison of Customer.io and MJML. See all plans, features, and costs at a glance.

Bottom line: Customer.io starts at $100/mo and MJML starts at Custom pricing. Compare all 4 pricing tiers side by side.

Last updated: July 6, 2026

Data compiled by Arthur Jacquemin
Updated July 6, 2026
Try Customer.io freeTry MJML freePrice updated 11d ago
Best Value

MJML - MJML offers a free plan.

Customer.io vs MJML: Quick Pricing Facts

FeatureCustomer.ioMJML
Starting Price$100/moCustom pricing
Number of Plans31
Free TierNoYes
Pricing Modelusage-basedopen-source
Annual DiscountN/AN/A

Customer.io and MJML are both priced at $100/mo, making them equally accessible Email Marketing tools. Together they offer 4 pricing plans with 3 features compared, so the best choice comes down to which features match your needs.

MJML stands out with a free plan for getting started. Customer.io uses usage-based pricing while MJML uses open-source pricing, which may affect your total cost at scale.

Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your Email Marketing needs.

Pricing Plans
Customer.io
Customer.io
Try free
MJML
Tier 1
Essentials
$100/month
Start with Essentials
Free
$0/monthCheapest
Includes
  • Open-source email framework
  • Responsive emails
  • Component-based
Start with Free
Tier 2
Premium
$1000/monthCheapest
Start with Premium
-
Tier 3
Enterprise
Custom pricing
Start with Enterprise
-

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Customer.io

Automated messaging platform for targeted customer engagement

View all Customer.io plans

MJML

Open-source markup language for responsive email templates

View all MJML plans

Frequently Asked Questions: Customer.io vs MJML

How many pricing plans does Customer.io have vs MJML?
Customer.io offers 3 pricing plans, while MJML offers 1 plan. More plans typically means more flexibility to match your exact needs and budget.
Does Customer.io or MJML offer a free plan?
MJML offers a free plan, while Customer.io does not. If budget is a concern, MJML lets you get started at no cost.
Does Customer.io or MJML offer custom enterprise pricing?
Customer.io offers a custom-priced enterprise tier for larger teams. MJML lists all its pricing publicly.
What pricing models do Customer.io and MJML use?
Customer.io uses a usage-based pricing model, while MJML uses open-source pricing. The right model depends on your team size and usage patterns.
How do Customer.io and MJML compare for Email Marketing?
Both Customer.io and MJML are Email Marketing tools. Customer.io offers 3 plans starting at $100/mo, while MJML offers 1 plan starting at Custom pricing. Review the feature breakdowns above to see which better fits your Email Marketing needs.
AI Recommendations

Sources

  1. Customer.io Official Pricing- Vendor pricing page
  2. MJML Official Pricing- Vendor pricing page

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