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Email Marketing Comparison

Constant Contact vs. Mailchimp

At a glance

At a glance

Constant Contact

Best for

Best for small businesses that want an email marketing platform with templates, automation and an AI content generator, and phone support to get started.

  • Freelancers
  • Small and mid-sized

Mailchimp

Best for

Best for teams that want an email marketing platform with designed templates, automation and AI writing tools, and a Marketing API to connect their own data.

  • Freelancers
  • Small and mid-sized
  • Enterprise

Cataleo does not name a winner. Both statements come from the vendors themselves.

Full Comparison

Criterion Constant Contact Mailchimp
Starting price lower value From $12 / month Lite plan; the price scales with the number of contacts. Prepaying for 12 months saves up to 15 percent. From $13 / month Essentials plan; the price scales with the number of contacts.
Free trial Free trial available, no credit card required Free plan available for up to 500 contacts
API Yes, a v3 REST API for contacts and email campaigns with webhooks and OAuth 2.0 Yes, a Marketing API for audiences, automations and data sync, plus more than 300 integrations
Hosting Cloud (SaaS) Cloud (SaaS)
Made in United States Not stated
Campaign types Yes, email campaigns, with 500 SMS messages a month and social posts on the Premium plan Yes, email newsletters and campaigns, with A/B testing and scheduling on paid plans
Automation and journeys Yes, automation templates, one on Lite, three on Standard and unlimited custom automations on Premium Yes, automation flows, up to 3 steps on Essentials and up to 200 flows on Standard and Premium
Segmentation and personalisation Yes, ten custom segments on Standard and unlimited custom segments with dynamic content on Premium Yes, segmentation and dynamic content, with predictive segmentation on Premium
Templates and editor Yes, an email editor with templates and an AI content generator Yes, professionally designed templates and an editor, with custom-coded templates on Premium
Deliverability and testing Yes, subject line A/B testing and automatic resend to non-openers on Standard and Premium Yes, A/B testing and scheduling on paid plans
Ecommerce and CRM data Yes, contact management with integrations, plus revenue reporting on the Premium plan Yes, audience data with tags and more than 300 integrations
Integrations and API Yes, a v3 REST API for contacts and email campaigns with webhooks and OAuth 2.0 Yes, a Marketing API for audiences, automations and data sync
AI features Yes Yes
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support Phone, Chat more entries Email helpdesk, Chat, Phone
Company size Freelancers, Small and mid-sized more entries Freelancers, Small and mid-sized, Enterprise

Compare more tools

Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.

The short version

Key Differences

  • Starting price Constant Contact From $12 / month Mailchimp From $13 / month
  • Free trial Constant Contact Free trial available, no credit card required Mailchimp Free plan available for up to 500 contacts
  • Company size Constant Contact Freelancers, Small and mid-sized Mailchimp Freelancers, Small and mid-sized, Enterprise
  • Support Constant Contact Phone, Chat Mailchimp Email helpdesk, Chat, Phone
  • API Constant Contact Yes, a v3 REST API for contacts and email campaigns with webhooks and OAuth 2.0 Mailchimp Yes, a Marketing API for audiences, automations and data sync, plus more than 300 integrations

Every line is one datapoint from the table above, picked automatically. Nothing here is written text.

The trade-offs

Strengths and Limitations

Constant Contact

Strengths

  • AI content generator for on-brand emails, texts and social posts
  • Automatic resend to non-openers and subject line A/B testing on the paid plans
  • v3 REST API with webhooks and OAuth 2.0
  • Prepaying for 12 months saves up to 15 percent

Limitations

  • Prices scale with the number of contacts
  • The Lite plan is limited to one user and one automation template

Mailchimp

Strengths

  • Generative AI writing and design tools on the Standard and Premium plans
  • Marketing API with webhooks and OAuth 2 for audiences and automations
  • More than 300 integrations
  • Free plan for up to 500 contacts

Limitations

  • Prices scale with the number of contacts
  • Predictive segmentation and custom-coded templates are reserved for the top plans

Plans

Pricing

Constant Contact

  • Lite From $12 / month One user, one automation template and basic reporting, with monthly sends up to 10x the number of contacts. Scales with contacts.
  • Standard From $35 / month Three users, email scheduling, subject line A/B testing, resend to non-openers, three automation templates, AI campaign building and ten custom segments.
  • Premium From $80 / month Unlimited users, unlimited custom automations and segments, dynamic content, revenue reporting, dedicated support and 500 SMS messages a month.
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Mailchimp

  • Free $0 / month Up to 500 monthly sends and 250 contacts, with a limited set of templates.
  • Essentials From $13 / month Designed templates, A/B testing, scheduling and up to 3 automation flow steps. Scales with contacts.
  • Standard From $20 / month Adds AI writing and design tools and up to 200 automation flows. Scales with contacts.
  • Premium From $350 / month Adds unlimited contacts and seats, predictive segmentation, phone and priority support and custom-coded templates.
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What users say

Review Scores · opens after launch

Constant Contact

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Mailchimp

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Where this comes from

Where this comes from

Constant Contact https://www.constantcontact.com · checked against the official source on 2026-08-19

Mailchimp https://mailchimp.com · checked against the official source on 2026-08-19

This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.