Customer.io vs Mailtrap: Pricing Comparison 2026
Side-by-side pricing comparison of Customer.io and Mailtrap. See all plans, features, and costs at a glance.
Bottom line: Mailtrap starts at $15/mo, making it $85/mo cheaper than Customer.io ($100/mo). Mailtrap offers a free plan.
Last updated: September 7, 2026
Mailtrap - Mailtrap offers a free plan, starts at $85/mo lower ($15/mo vs $100/mo), offers 4 tiers vs 3.
Customer.io vs Mailtrap: Quick Pricing Facts
| Feature | Customer.io | Mailtrap |
|---|---|---|
| Starting Price | $100/mo | $15/mo |
| Number of Plans | 3 | 4 |
| Free Tier | No | Yes |
| Pricing Model | usage-based | usage-based |
| Annual Discount | N/A | N/A |
Mailtrap is the more affordable option, starting at $15/mo compared to Customer.io's $100/mo. Both are Email Marketing tools with 7 combined pricing plans and 16 features compared.
Mailtrap stands out with a free plan for getting started.
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 Try free |  Mailtrap Try free |
|---|---|---|
| Tier 1 | Essentials $100/month | |
| Tier 2 | Premium $1000/month | |
| Tier 3 | Enterprise Custom pricing | BusinessPopular $85/monthCheapest Includes
|
| Tier 4 | - | Enterprise $750/monthCheapest Includes
|
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Mailtrap
Email delivery and testing platform for developers with sending API, SMTP, and email sandbox
View all Mailtrap plansFrequently Asked Questions: Customer.io vs Mailtrap
Which is cheaper, Customer.io or Mailtrap?
How many pricing plans does Customer.io have vs Mailtrap?
Does Customer.io or Mailtrap offer a free plan?
What is the most popular Mailtrap plan?
Does Customer.io or Mailtrap offer custom enterprise pricing?
How do Customer.io and Mailtrap compare for Email Marketing?
Sources
- Customer.io Official Pricing- Vendor pricing page
- Mailtrap Official Pricing- Vendor pricing page
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