Which is cheaper, Customer.io or Mailchimp?

Mailchimp is 7.7x cheaper than Customer.io. Customer.io starts at $100/mo, Mailchimp starts at $0/mo.

Does Customer.io have a free tier?

No, Customer.io does not have a free tier.

Customer.io has significant switching cost. Mailchimp has moderate switching cost. Mailchimp is easier to switch away from.

Customer.io

Automated messaging platform for targeted emails, push notifications, SMS, and in-app messages based on user behavior

Switching Cost: significant

Mailchimp

← More affordable

All-in-one email marketing and automation platform with audience management, landing pages, and analytics

Switching Cost: moderate

Budget-wise, Mailchimp is clearly more affordable at roughly a 7.7x price difference.

For experimentation and testing, Mailchimp wins with its free tier option — something Customer.io doesn't offer.

If budget is your primary constraint, Mailchimp is the clear winner with its more wallet-friendly pricing structure.

If budget is your primary constraint, Mailchimp is the clear winner with its more wallet-friendly pricing structure.

Price Difference

7.7x

Mailchimp is cheaper by $87/mo

Free Tier

Mailchimp

Has a free tier option

Switching Costs

Mailchimp

Lower switching costs for easier migration