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Email Marketing Comparison

Constant Contact vs. Iterable

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

Iterable

Best for

Best for enterprise marketing teams running email together with mobile channels such as in-app, Mobile Inbox and embedded messages.

  • Enterprise

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

Full Comparison

Criterion Constant Contact Iterable
Starting price From $12 / month Lite plan; the price scales with the number of contacts. Prepaying for 12 months saves up to 15 percent. Not stated
Free trial Free trial available, no credit card required Not stated
API Yes, a v3 REST API for contacts and email campaigns with webhooks and OAuth 2.0 Yes, a REST API for lists, events, user data, revenue tracking and campaign triggers, with native SDKs for Android, iOS and React Native
Hosting Cloud (SaaS) Cloud (SaaS)
Made in United States United States
Campaign types Yes, email campaigns, with 500 SMS messages a month and social posts on the Premium plan Yes, email, SMS, push notifications, web push, in-app messages, Mobile Inbox and embedded messages
Automation and journeys Yes, automation templates, one on Lite, three on Standard and unlimited custom automations on Premium Yes, cross-channel journeys and workflows with milestones synchronised across touchpoints, plus Nova Agents for journey optimisation
Segmentation and personalisation Yes, ten custom segments on Standard and unlimited custom segments with dynamic content on Premium Yes, real-time audience segmentation on behavioural, product and engagement data, with Nova Decisioning for next best action
Templates and editor Yes, an email editor with templates and an AI content generator Yes, five template types covering email, in-app, push, SMS and web push, with an optional WYSIWYG editor alongside the standard editors
Deliverability and testing Yes, subject line A/B testing and automatic resend to non-openers on Standard and Premium Yes, spam reports to test whether messages land in the inbox, plus A/B and multivariate experimentation
Ecommerce and CRM data Yes, contact management with integrations, plus revenue reporting on the Premium plan Yes, unifies behavioural, product and engagement data into customer profiles
Integrations and API Yes, a v3 REST API for contacts and email campaigns with webhooks and OAuth 2.0 Yes, a REST API for lists, event data, user updates, revenue tracking and campaign triggers, with native SDKs for Android, iOS and React Native
AI features Yes Yes
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support Phone, Chat Email helpdesk, Community forum
Onboarding Not stated Documentation and knowledge base, Video tutorials
Company size 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

  • Company size Constant Contact Freelancers, Small and mid-sized Iterable Enterprise
  • Support Constant Contact Phone, Chat Iterable Email helpdesk, Community forum
  • API Constant Contact Yes, a v3 REST API for contacts and email campaigns with webhooks and OAuth 2.0 Iterable Yes, a REST API for lists, events, user data, revenue tracking and campaign triggers, with native SDKs for Android, iOS and React Native
  • Campaign types Constant Contact Yes, email campaigns, with 500 SMS messages a month and social posts on the Premium plan Iterable Yes, email, SMS, push notifications, web push, in-app messages, Mobile Inbox and embedded messages
  • Automation and journeys Constant Contact Yes, automation templates, one on Lite, three on Standard and unlimited custom automations on Premium Iterable Yes, cross-channel journeys and workflows with milestones synchronised across touchpoints, plus Nova Agents for journey optimisation

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

Iterable

Strengths

  • Mobile Inbox and embedded messages sit alongside email, SMS, push and web push
  • Real-time segmentation with A/B and multivariate experimentation
  • Nova agents automate audience building and journey optimisation
  • REST API plus native SDKs for Android, iOS and React Native

Limitations

  • No published pricing, every tier is quoted by sales
  • Positioned for enterprise scale rather than small lists
  • The WYSIWYG editor is a project setting rather than the default

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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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.

Iterable

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

Iterable https://iterable.com · checked against the official source on 2026-09-03

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