Constant Contact and Mailchimp both get pitched as the safe, recognizable choice for small businesses starting email marketing, and they've been direct competitors since long before either company reached its current size. Despite that overlap, they've never been compared directly on this site.
What Constant Contact actually does
Constant Contact targets small businesses, nonprofits, and local service providers specifically, and has built its reputation on being the known-quantity, low-risk choice for people new to email marketing. Lite runs $12/month and covers 500 contacts with basic email and social posting. Standard costs $35/month, adds automation series, A/B testing, and contact segmentation, and is genuinely needed for most automation features. Premium runs $80/month with unlimited users, advanced automation, and Google Ads integration.
The standout feature here is event management: registration forms, ticketing, and attendee tracking that are meaningfully stronger than what most email platforms offer, a real differentiator for nonprofits and event-driven organizations. Phone support is available from day one on every plan, unusual for this price tier and the single most-cited reason non-technical users stick with it. The honest tradeoff is cost: Reddit's email marketing communities consistently describe Constant Contact as overpriced for what you get compared to Brevo or ActiveCampaign, and the automation and segmentation depth is basic relative to the Standard and Premium price points.
What Mailchimp actually does
Mailchimp, acquired by Intuit in 2021, runs a free tier covering 500 contacts and 1,000 emails a month, a noticeably reduced allowance compared to its earlier free tier. Essentials starts at $13/month with 5,000 emails, A/B testing, 24/7 support, and branding removal. Standard costs $20/month and adds advanced automations, retargeting ads, and custom templates. Premium runs $350/month with 150,000+ emails, phone support, and advanced segmentation, a steep jump from Standard aimed specifically at high-volume senders.
Mailchimp's pricing is contact-based rather than send-based, which is the detail that catches growing lists off guard: at 10,000 contacts, Standard runs $100+/month even if actual send volume stays flat. Reddit's email communities frequently point out that ConvertKit handles creator audiences better, Klaviyo handles e-commerce better, and ActiveCampaign delivers deeper automation at a lower price, leaving brand recognition and beginner-friendliness as Mailchimp's real remaining advantages.
Where the two genuinely diverge
Constant Contact optimizes for guided, supported onboarding and event-driven marketing: phone support on every tier and event registration tools that neither Mailchimp nor most competitors match. Mailchimp optimizes for broader brand recognition and a more generous entry point, with a genuinely free tier Constant Contact doesn't offer at all past its 60-day trial.
The automation depth gap is real on both sides relative to dedicated automation tools, but the two aren't equally basic. Mailchimp's Standard tier at $20/month adds advanced automations and retargeting ads at a lower price than Constant Contact's equivalent Standard tier at $35/month, though Constant Contact's automation, while more expensive, ships with the event management integration Mailchimp doesn't attempt to match.
Real cost for different senders
A nonprofit or association running ticketed events alongside email campaigns: Constant Contact Standard at $35/month is the only one of the two built specifically for that combined workflow, and the event registration and attendee tracking tools are worth the premium for organizations that actually run events regularly.
A small business sending its first few campaigns and wanting to test the waters without commitment: Mailchimp's free tier (500 contacts, 1,000 emails/month) offers a real no-cost starting point that Constant Contact doesn't match past its trial period.
A business that values being able to call a real person for support without upgrading to a premium tier: Constant Contact's phone support on every plan, including Lite at $12/month, is a genuine differentiator over Mailchimp, where phone support is gated behind the $350/month Premium tier.
A growing list moving past 5,000-10,000 contacts on a budget: both platforms get expensive at scale, but Mailchimp's Standard tier at $20/month undercuts Constant Contact's equivalent Standard tier at $35/month for teams that don't specifically need event management.
What actually breaks in practice
Constant Contact's failure mode is paying a brand-recognition premium. The product works reliably and the support is genuinely good, but experienced email marketers consistently find the automation and segmentation shallow for a price that runs higher than Brevo or ActiveCampaign at comparable list sizes.
Mailchimp's failure mode is the contact-based pricing model itself. A list that grows without a proportional increase in actual email volume still pays more, and the free tier's shrinking allowances mean fewer businesses can stay on it as long as they used to.
Data handling and where your contact lists live
Constant Contact is US-based and may share some data with advertising partners for cross-platform targeting, a broader data-sharing posture than some competitors. Contact data is exportable, and the company processes AI features on email content, though the exact scope of that processing isn't as clearly documented as some newer platforms.
Mailchimp, owned by Intuit since 2021, operates under Intuit's privacy policy, which permits using customer data to develop and improve products including AI and ML features. Campaign data is processed on US servers via AWS, and aggregated campaign data is shared for benchmarking purposes. Full list and campaign export is available, though free tier users have fewer privacy controls than paid accounts.
Switching between them
Migrating from Constant Contact to Mailchimp means losing the integrated event management tools entirely, any registration or ticketing workflows built around Constant Contact's event features need to be rebuilt using a separate tool since Mailchimp has no equivalent. Contact lists and basic campaign templates typically export and import cleanly via CSV.
Migrating from Mailchimp to Constant Contact means gaining phone support on every tier and event management tools, in exchange for losing Mailchimp's free tier and its typically lower cost at the Standard tier specifically. Automation sequences built in Mailchimp need to be manually recreated, since automation logic doesn't transfer directly between platforms.
Onboarding and day-to-day usability
Constant Contact's signup starts a 60-day free trial with no credit card required, and contact import from a spreadsheet or existing tool works smoothly. Phone support being available from the trial itself, not gated behind a paid tier, is genuinely unusual and shows up repeatedly in positive feedback from non-technical users who value being able to talk through a setup question rather than search a help center.
Mailchimp's signup is similarly quick, and the drag-and-drop email builder remains one of the more polished options for building a professional-looking campaign without HTML knowledge. The tradeoff that shows up in user feedback is an interface that has become more cluttered with upsell prompts over time, a common complaint as Mailchimp has pushed users toward higher tiers more aggressively since the Intuit acquisition.
Which one to actually pick
Pick Constant Contact if your organization runs events alongside email campaigns, or if reliable phone support matters more than automation sophistication, particularly for nonprofits and associations.
Pick Mailchimp if you want a genuinely free starting tier, broader brand recognition for organizational buy-in, or lower-cost automation at the mid-tier specifically, and you don't need integrated event management.
For businesses serious about deep automation or e-commerce-specific triggers, neither is the strongest option, ActiveCampaign and Klaviyo respectively tend to outperform both at comparable or lower cost once your needs go past basic campaign sending.