Customer.io vs MailerLite: Pricing Comparison 2026
Side-by-side pricing comparison of Customer.io and MailerLite. See all plans, features, and costs at a glance.
Bottom line: Customer.io starts at $100/mo and MailerLite starts at Custom pricing. Compare all 6 pricing tiers side by side.
Last updated: March 16, 2026
Customer.io vs MailerLite: Quick Pricing Facts
| Feature | Customer.io | MailerLite |
|---|---|---|
| Starting Price | $100/mo | Custom pricing |
| Number of Plans | 3 | 3 |
| Free Tier | No | Yes |
| Pricing Model | usage-based | usage-based |
| Annual Discount | N/A | N/A |
Customer.io and MailerLite are both priced at $100/mo, making them equally accessible Email Marketing tools. Together they offer 6 pricing plans with 36 features compared, so the best choice comes down to which features match your needs.
MailerLite 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 it free |  MailerLite Try it free |
|---|---|---|
| Tier 1 | Essentials $100/monthCheapest | AdvancedPopular Custom pricing Includes
|
| Tier 2 | Premium $1000/monthCheapest | Growing Business Custom pricing Includes
|
| Tier 3 | Enterprise Custom pricing | Free $0/monthCheapest Includes
|
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What Reviewers Say
MailerLite
MailerLite offers a free plan.
Based on pricing data only. Review the full comparison below for your specific needs.
Best value: MailerLite
Try MailerLite freeWhich Should You Choose?
Choose Customer.io if:
- •You prioritize Customer.io's user experience and interface over price (both tools are similarly priced)
- •You want Customer.io's approach to incremental feature unlocking across its 3 pricing tiers
- •Customer.io keeps its feature set lean, which means faster onboarding and less complexity
Choose MailerLite if:
- •You need a free plan with 12,000 monthly emails, 1 user seat—MailerLite offers no-cost access with no credit card required
- •You want more features built-in—MailerLite offers 36 additional features across its plans
- •You prioritize MailerLite's user experience and interface over price (both tools are similarly priced)
MailerLite offers a free plan [1], eliminating the cost barrier for evaluation, while Customer.io requires paid subscription from the start. This gives MailerLite a significant advantage for teams with budget constraints or extended trial periods. Once you outgrow MailerLite's free tier, upgrading to a paid plan at approximately Custom pricing provides substantial additional functionality. Compare this pricing path against Customer.io's tiering starting at $100/mo to assess total cost of ownership over 12 months. MailerLite's 3 tiers provide flexibility at different budgets, while Customer.io's 3 tiers structure may force you into higher-cost plans than necessary for your use case. If evaluation cost matters to your decision, MailerLite is the obvious starting point with zero financial commitment. Use the free tier to validate core functionality before committing to paid plans from either tool.
Frequently Asked Questions: Customer.io vs MailerLite
How many pricing plans does Customer.io have vs MailerLite?
Does Customer.io or MailerLite offer a free plan?
What is the most popular MailerLite plan?
Does Customer.io or MailerLite offer custom enterprise pricing?
How do Customer.io and MailerLite compare for Email Marketing?
Sources
- Customer.io Official Pricing— Vendor pricing page
- MailerLite Official Pricing— Vendor pricing page
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