Mailchimp vs Customer.io
Marketing Automation pricing comparison · 2026
Mailchimp pricing ranges from $0–$350/month, while Customer.io ranges from $0–$1000/month. Mailchimp is typically 96% more affordable, though your actual cost depends on tier and team size.
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Mailchimp and Customer.io both operate in the marketing automation category. This page compares their list pricing.
Plan-by-Plan Pricing
| Plan | Mailchimp | Customer.io |
|---|---|---|
| Free | Free /month | Free /month |
| Essentials | $13 /month | $100 /month |
| Standard | $20 /month | $1K /month |
| Premium | $350 /month | Custom |
Cost at Scale
Total cost of ownership — licenses, implementation, and hidden costs included.
Mailchimp
6 scenarios$45/month ($540/year)
Small Business (2,500 Contacts)
Standard plan at 2,500 contact tier with 30,000 monthly sends
$230/month ($2,760/year)
Growing Business (25,000 Contacts)
Standard plan at 25,000 contact tier with 300,000 monthly sends
$0/month
Micro Business on Free Plan
Customer.io
2 scenarios$145/month
Growing SaaS (10,000 Profiles)
Essentials base $100/month + $45 for 5,000 additional profiles at $0.009 each
$1,000
E-commerce App (50,000 Profiles)
+/month - Premium tier with custom volume for 50,000 profiles across multiple object types, plus SMS costs
Market Intelligence
Mailchimp
- Median annual cost
- $500
- Based on
- 410 deals
Customer.io
- Median annual cost
- $6,500
- Based on
- 14 deals