Pick Mailchimp if you want a free starting point, slick templates and stronger automation. Pick Constant Contact if you want a simpler tool, phone support on every paid plan, and (for clinics) a vendor that will sign a BAA. Pick ActiveCampaign if automation is the whole point and email is just the delivery truck.
That's the short version. The rest of this guide covers the details that actually change the decision: how each one bills you, what you get for support, where texting fits, and what happens when your list holds patient data.
TL;DR
- Mailchimp is the better fit for design-heavy newsletters, a free plan and more advanced automation. Watch the contact billing as your list grows.
- Constant Contact is the better fit for owner-led teams that want a simple editor, phone support, events and built-in SMS on higher plans.
- Healthcare clinics: Constant Contact will sign a BAA for qualifying accounts, and Mailchimp generally won't. That alone can settle it.
- ActiveCampaign beats both when you need real behavior-based automation, but it costs more and takes longer to set up.
- Whichever you choose, the tool only works if someone wires it to your leads, your calendar and your follow-up.
Table of Contents
- Mailchimp vs Constant Contact at a glance
- Pricing: the sticker price isn't the bill
- Ease of use: pretty versus practical
- Automation and reporting
- SMS and support
- Deliverability: closer than the marketing claims
- What about ActiveCampaign?
- Which one for which business
- Clinics and patient data: read this before you import a list
- Our perspective: the email tool isn't your real problem
- When we can take it off your plate
- How to decide in 30 minutes
- FAQ
- Sources
Mailchimp vs Constant Contact at a glance
| Mailchimp | Constant Contact | |
|---|---|---|
| Free plan | Yes, up to 250 contacts and 500 monthly sends | No (dropped June 2025) |
| Entry paid price | About $13/month for 500 contacts per one 2026 comparison; Standard starts at $20+ per Mailchimp | Lite from $12/month for 500 contacts per the same comparison |
| Phone support | Premium plan only ($350+/month) | All paid plans |
| SMS | Paid add-on | Included on Premium (500 free messages) |
| User satisfaction (G2, Mar 2026) | 4.3/5 | 4.1/5 |
| BAA for PHI | Generally no | Yes, for qualifying healthcare accounts |
| Best for | Design, automation, reporting | Simplicity, support, events |
The pricing and free-plan figures come from this March 2026 comparison. Both vendors change plans often, so check their pricing pages the day you buy.
Pricing: the sticker price isn't the bill
Mailchimp looks cheaper because of the free tier. Constant Contact looks cheaper at the very bottom because Lite starts at $12 a month. Neither number is what you'll pay in a year.
Both tools price by contact count, so the bill climbs as your list does. The detail that surprises people: Mailchimp counts unsubscribed and cleaned contacts toward your plan limit, which can inflate costs by 20 to 40% unless you archive them by hand. Constant Contact is also contact-based but doesn't have that same dead-contact penalty.
Three quick rules:
- Under 250 contacts and a simple newsletter? Mailchimp's free plan is a fair place to start. Mailchimp's free plan caps at 500 sends a month, so a weekly email to 250 people already runs into it.
- Past 500 contacts? Compare the two at your real list size, not the entry tier. Entry prices are bait. Read the tier table for 2,500 or 5,000 contacts.
- Mailchimp users: archive unsubscribed contacts on a schedule. Put it on the calendar.
One more cost nobody lists: your time. A tool that's cheaper but that nobody on your team wants to open costs more than one that's $20 higher and gets used.
Ease of use: pretty versus practical
Ease of use is subjective, and reviewers say so. If your job is a monthly newsletter, Mailchimp's modern, design-heavy interface tends to win. If your job is running a business, say event signups, or having someone to call when a campaign won't send, Constant Contact's plainer approach is often preferred by owner-led, non-technical teams.
On reviews, Mailchimp scores slightly higher overall on G2 (4.3 vs 4.1 as of March 2026), while Constant Contact ranks higher on customer support.
My take: Mailchimp gives you more room to make something that looks great. Constant Contact gives you fewer ways to get lost. Which one you want depends on whether you've got a person who enjoys building emails or a person who's doing this at 9 p.m. after closing.
Automation and reporting
This is where Mailchimp pulls ahead. Reviewers consistently credit it with stronger automation, reporting and AI features, including its Customer Journey Builder. EmailToolTester's comparison says Mailchimp is great for automation, reporting and AI, while Constant Contact has robust social media integrations and a user-friendly setup.
Constant Contact's reports are easier to read for beginners. Mailchimp's go deeper. If you've never looked at a click map, start simple. If you already ask which campaign produced which booking, you'll outgrow the simple version fast.
Track your campaigns with tagged links either way. A UTM builder keeps your naming consistent so your analytics can tell a newsletter click from a social click.
SMS and support
For small businesses that want email and texting in one place, Constant Contact includes SMS on its Premium plan with 500 free messages. Mailchimp treats SMS as a paid add-on on paid plans. On G2, users rate Constant Contact's Text Scheduler at 10.0, and Mailchimp has no equivalent feature listed. SMS for both is limited to paid customers in the United States.
Support is the other big gap. Constant Contact offers phone and chat on every paid plan. Mailchimp's phone support is limited to Premium at $350+ a month. If something breaks the morning of a promotion, that difference matters more than any feature table.
If texting is mostly about confirming appointments, read our guide on SMS appointment reminders before paying for a bulk-marketing SMS tier. Reminders and promotions are different jobs with different rules.
Deliverability: closer than the marketing claims
Both platforms deliver well enough for most small businesses, and neither is set-and-forget. Mailchimp has a slight edge in average inbox placement thanks to a larger sender network and longer track record. Both use shared IP pools, so your reputation is partly tied to other senders, and neither gives you a transparent real-time placement dashboard. The same source suggests monitoring Gmail, Yahoo and AOL placement with an outside tool.
What you control: a clean list, a real from-name, consistent send times and no purchased contacts. That helps more than switching platforms.
What about ActiveCampaign?
Many readers who search these two also check ActiveCampaign. It's a different animal. Mailchimp and Constant Contact are email tools with automation bolted on. ActiveCampaign is an automation tool that sends email. According to one 2026 pricing review, Starter runs $19 a month for 1,000 contacts, with higher tiers costing more.
Choose it when you need to trigger messages from behavior: someone viewed a service page, didn't book, and gets a nudge two days later. Skip it if you send a monthly newsletter and nothing else. You'd pay for power you'd never use, plus setup time.
Which one for which business
- Solo owner, a newsletter, tiny list: Mailchimp free.
- Local shop or studio that runs events, wants a human on the phone: Constant Contact.
- Online store or content business that cares about design and journeys: Mailchimp paid.
- Business that books appointments from leads: ActiveCampaign, or a CRM that handles follow-up natively (more on that below).
- Medical or dental practice: Constant Contact, with the caveats in the next section.
Clinics and patient data: read this before you import a list
The biggest mistake healthcare practices make is assuming a marketing tool is safe for patient data. VettedSaaS notes that unless the platform signs a Business Associate Agreement (BAA), you're taking on legal risk. Constant Contact will sign a BAA for qualifying healthcare accounts. Mailchimp generally does not, which makes it unsuitable for protected health information.
Two practical points. First, a BAA doesn't make you compliant by itself. It covers the vendor's handling of data, not your list practices. Second, consent matters: this overview of email marketing consent in healthcare is a good place to sort out what patients have agreed to receive. For anything specific to your practice, talk with your compliance officer or healthcare attorney.
If you're also putting a chatbot or AI receptionist in front of patients, the same logic applies. Our HIPAA chatbot compliance controls cover what to ask a vendor.
Our perspective: the email tool isn't your real problem
We build automation for owner-led businesses, and here's what we see. Owners spend weeks on Mailchimp vs Constant Contact and then send three emails a year. The platform was never the bottleneck.
The bottleneck is the gap between a lead raising a hand and somebody responding. A new inquiry comes in at 6 p.m., nobody replies until tomorrow, and the customer books with the next business. A newsletter tool doesn't fix that. Follow-up does: a fast text, a booking link, a reminder, a nudge after a no-show.
So our advice is blunt. Pick the email tool that your team will actually use and that fits your compliance needs. Then connect it to the rest: your forms, your calendar, your CRM, your phone line. That wiring is the part most small businesses never get done, and it's the part that shows up in revenue. We'd rather build that for you than advise you on it, which is how we work.
If you're deciding on the bigger picture, our guides on picking a small business CRM and automating lead follow-up with four triggers are a good next read.
— Brian
When we can take it off your plate
If you'd rather not spend a month comparing dashboards, that's what we do. AI Agent Worx builds and maintains CRM, messaging and nurture automation for small and medium businesses: leads get captured, answered and followed up automatically, and appointments land on your calendar. We also handle the AI phone receptionist side, so calls don't go to voicemail. Pricing isn't published, so the first step is a discovery conversation through our services page. Clinics and other appointment-driven businesses are a core part of who we help.
How to decide in 30 minutes
- Count your contacts today and in 12 months. Price both tools at that size.
- Answer the PHI question. If your list includes patients, Mailchimp is probably out.
- Decide who sends. If it's you, favor simple. If it's a marketer, favor depth.
- Test support. Ask one question in chat and one by phone before paying.
- Run the free trial or free plan with a real campaign, not a sample.
- Plan the connection. Know where new leads come from and where they'll land.
FAQ
Is Mailchimp or Constant Contact better for small business?
It depends on who's using it. Mailchimp suits owners who want a free start, better design and stronger automation. Constant Contact suits owners who want a simpler tool and phone support on every paid plan.
Does Constant Contact have a free plan?
No. Constant Contact dropped its free plan in June 2025, per this comparison. Mailchimp still offers a free plan, but it's limited to 250 contacts and 500 monthly sends. Constant Contact's Lite plan starts at about $12 a month.
Is ActiveCampaign better than Mailchimp?
For automation, usually yes. ActiveCampaign is built around behavior-based sequences, while Mailchimp is stronger on design and simple campaigns. It's also pricier as your list grows, so it only pays off if you'll use the automation.
Can a medical or dental clinic use Mailchimp?
Probably not for patient data. Mailchimp generally doesn't sign a BAA, which makes it unsuitable for protected health information. Constant Contact will sign one for qualifying healthcare accounts. Confirm with your compliance advisor before importing any patient list.
Sources
- Mailchimp vs Constant Contact (2026), SaaSProbe
- Email Marketing for Healthcare, VettedSaaS
- Mailchimp vs Constant Contact Deliverability, Inbox Eagle
- Constant Contact vs Intuit Mailchimp, G2
- Mailchimp vs Constant Contact, EmailToolTester
- ActiveCampaign Pricing 2026, Email Vendor Selection
- SMS pricing, Mailchimp