Marketing Automation Software

Customer.io vs Mailchimp

Compare Customer.io and Mailchimp side-by-side. See feature differences and pricing in the Marketing Automation Software category.

Customer.io

by Customer.io

0.0 (0)

Pricing: Essentials from $100/mo for 5,000 profiles billed monthly, from $505 at 50,000; Premium from $1,000/mo billed yearly; Enterprise on request; 14-day trial, no free plan

Customer.io is event-driven messaging with the customer data pipeline that feeds it in one product: email, push, in-app, SMS and WhatsApp for product-led teams.

13 /21 features Full profile

Most Features

Mailchimp

by Intuit

0.0 (0)

Pricing: Free for 250 contacts; at 10,000 contacts Essentials $110/mo, Standard $135, Premium $350; Transactional Email adds $20 per 25,000 emails and needs Standard or Premium (September 2026)

Mailchimp is email marketing and automation for small businesses, with a free plan, predictive segments and a transactional email API on the higher tiers.

15 /21 features Full profile

Feature Comparison

Marketing Automation Software features side-by-side

Feature	Customer.io 13/21 features	Mailchimp 15/21 features
Free plan A permanent free tier for a small list, not only a time-limited trial.	No	Yes
Sales pipeline and deal tracking Deals, stages and a pipeline view inside the platform, included or as a paid add-on.	No	No
Lead scoring Contacts or deals scored automatically from behavior so sales can prioritise.	No	No
Landing page builder Hosted landing pages built and published inside the platform without a separate tool.	No	Yes
Mobile app push notifications Push messages to the brand's own iOS and Android app through vendor SDKs.	Yes	No
Product reviews Collects and displays product reviews as part of the platform, included or as a paid add-on.	No	No
SMS marketing Text message campaigns and automation steps, included or as a paid add-on.	Yes	Yes
WhatsApp messaging WhatsApp campaigns and automated messages, included or as a paid add-on.	Yes	No
Send-time optimization The platform picks each contact's send time from when they usually open.	Yes	Yes
A/B testing Split tests on campaigns or automation emails with a winner chosen automatically.	No	Yes
Transactional email Order confirmations, receipts and password resets sent from the same platform.	Yes	Yes
Website visitor tracking Page views and site events tied to a contact's profile for triggers and segments.	Yes	Yes
Visual workflow builder A drag-and-drop canvas for multi-step journeys with waits, branches and actions.	Yes	Yes
Revenue attribution Revenue and conversions tied back to the campaign or automation that drove them.	Yes	Yes
Predictive analytics Model-driven predictions such as churn risk, lifetime value or win probability.	No	Yes
Ad audience sync Push segments to Meta or Google Ads audiences for retargeting and exclusion.	Yes	Yes
Webhooks Send contact and event data to another system from inside an automation.	Yes	Yes
User roles and permissions Granular roles that limit what each team member can see and change.	Yes	Yes
Single sign-on SAML or IdP login for the whole team, included or on a higher plan.	Yes	No
Social media posting Schedule and publish posts to social networks from inside the platform.	No	Yes
AI marketing assistant An AI layer that drafts campaigns, suggests segments or proposes next actions.	Yes	Yes
Overall Rating	0.0 0 reviews	0.0 0 reviews

Customer.io 13/21 features

Free plan: No
Sales pipeline and deal tracking: No
Lead scoring: No
Landing page builder: No
Mobile app push notifications: Yes
Product reviews: No
SMS marketing: Yes
WhatsApp messaging: Yes
Send-time optimization: Yes
A/B testing: No
Transactional email: Yes
Website visitor tracking: Yes
Visual workflow builder: Yes
Revenue attribution: Yes
Predictive analytics: No
Ad audience sync: Yes
Webhooks: Yes
User roles and permissions: Yes
Single sign-on: Yes
Social media posting: No
AI marketing assistant: Yes

0.0

(0)

Mailchimp 15/21 features

Free plan: Yes
Sales pipeline and deal tracking: No
Lead scoring: No
Landing page builder: Yes
Mobile app push notifications: No
Product reviews: No
SMS marketing: Yes
WhatsApp messaging: No
Send-time optimization: Yes
A/B testing: Yes
Transactional email: Yes
Website visitor tracking: Yes
Visual workflow builder: Yes
Revenue attribution: Yes
Predictive analytics: Yes
Ad audience sync: Yes
Webhooks: Yes
User roles and permissions: Yes
Single sign-on: No
Social media posting: Yes
AI marketing assistant: Yes

0.0

(0)

Pricing

Customer.io

Essentials from $100/mo for 5,000 profiles billed monthly, from $505 at 50,000; Premium from $1,000/mo billed yearly; Enterprise on request; 14-day trial, no free plan

View plans

Mailchimp

Free for 250 contacts; at 10,000 contacts Essentials $110/mo, Standard $135, Premium $350; Transactional Email adds $20 per 25,000 emails and needs Standard or Premium (September 2026)

View plans

Explore Each Product

Customer.io Read reviews, features & pricing

Mailchimp Read reviews, features & pricing

Looking for more options?

Browse all Marketing Automation Software software