Constant Contact vs Mailchimp: which is better in 2026?

Constant Contact and Mailchimp are the two oldest household names in email marketing, and on paper they sell almost the same thing: a drag-and-drop editor, contact-based pricing, automations, and a long list of integrations. We scored them three tenths of a point apart — Constant Contact at 7.1, Mailchimp at 6.8 — which is our way of saying neither is a category leader and both lose to cheaper tools on pure value. But three tenths of a point hides some large, practical differences in who answers the phone, whose emails reach the inbox, and whose invoice grows faster than your list. This comparison pulls the verified numbers from our full Constant Contact review and Mailchimp review and puts them side by side.

Pricing and real cost at scale

Both platforms price by contact count, and both have an advertised entry price that bears little resemblance to what a growing list actually pays. Constant Contact starts at $12/mo for the Lite plan, but that covers exactly 0–500 contacts. Cross 500 and Lite reprices to $30/mo — a 150% increase applied automatically the month after contact number 501 arrives. Cross 1,000 and it is $50/mo. Mailchimp starts at $13/mo for Essentials at 500 contacts and climbs its own ladder from there. Here is how the comparable plans stack up at the price points we verified, using our standard benchmarks.

Read the sticker prices alone and Mailchimp looks like the cheaper tool at every size that matters, until the top tier. The problem is what each vendor counts as a billable contact. Mailchimp bills on your total stored contacts — including people who unsubscribed and people who never subscribed at all — and the same person kept in two audiences is billed twice. Only contacts you manually archive or delete stop costing money. A list that looks like 5,000 active subscribers can easily be 6,000 or 7,000 billable contacts, which quietly pushes you up a price band. Constant Contact does the opposite: unsubscribed contacts are not billed at all, per the company’s own official guidance. Its catch is different — your tier is set by the highest active contact count during the billing period, so a one-day import spike reprices the whole month even if you prune the list the next day.

Annual billing splits the two as well. Constant Contact offers up to 15% off for a 12-month prepay, which brings Standard at 10,000 contacts from $160/mo ($1,920 a year at list price) down to roughly $136/mo effective — a dollar above Mailchimp’s $135. Mailchimp offers no standard annual prepay discount on its marketing plans; the monthly number is the number you live with. One caveat from Constant Contact’s own knowledge base: a prepaid balance may run out sooner if your contact tier rises mid-term, so the discount assumes your list is not actively growing.

Two more line items belong in any honest budget. Constant Contact caps monthly sends at 10x your contact tier on Lite, 12x on Standard, and 24x on Premium — 100,000, 120,000, and 240,000 emails respectively at 10,000 contacts — and bills every email past the cap at $0.002 without pausing your sends. Mailchimp’s equivalent trap is the automation gate: Essentials caps automations at four steps, which pushes most growing senders onto Standard whether they planned to be there or not. SMS is a paid add-on on both sides — from $10/mo for 500 US-only messages at Constant Contact, around $20/mo at Mailchimp. The full tier-by-tier detail is in our Mailchimp pricing breakdown, and you can translate your own list size and send cadence into an annual figure with our real cost calculator.

Deliverability

This is the largest measurable gap between the two products, and it favors Constant Contact. The company claims a 98% inbox rate based on 2025 Validity Everest qualified inbox tests. That is a vendor-published number and we treat it as such, but Validity’s methodology is a recognized third-party benchmark, and deliverability complaints are notably rare in Constant Contact’s review corpus for a platform its size.

Mailchimp’s number comes from independent testing and it is worse. In EmailToolTester’s 2026 round, Mailchimp reached about 89.5% deliverability, ranking seventh out of fifteen tools, with 3 out of 5 stars on deliverability tooling. In plain terms, roughly 105 of every 1,000 emails may never reach the primary inbox. Part of the drop reflects a 2025 methodology change that weighs inbox-improvement features rather than pure seed-list placement, and Mailchimp does ship built-in reputation monitoring and benchmarking. But mid-pack is mid-pack. If your revenue depends directly on email arriving, this single metric should outweigh the template gallery, and it is a substantial share of why Constant Contact takes the overall win despite the higher sticker at 10,000 contacts.

Editor and ease of use

Here the order reverses. Mailchimp has the most polished drag-and-drop editor in the category, backed by hundreds of mobile-responsive templates and built-in AI helpers for copy and layout. G2 reviewers score it 8.7 out of 10 for ease of use across more than 11,000 ratings, and Capterra puts ease of use at 4.4. Someone who has never sent a marketing email can build and ship a respectable campaign in an afternoon, and Standard and Premium include a dedicated onboarding specialist free for the first 90 days.

Constant Contact is no slouch on the same dimension — its drag-and-drop builder, template library, and AI copy generator are the most-praised parts of the product, and G2’s summarized pros show ease of use cited in 1,059 reviews. The honest reading is that both tools clear the bar for non-technical teams, and Mailchimp clears it with more room to spare. If the deciding factor for you is purely how pleasant the tool is to open every morning, Mailchimp wins this section.

Automation and segmentation

Neither platform is generous at the entry level. Constant Contact’s Lite plan includes exactly one automation template and one custom segment. Standard raises that to three templates and ten segments, and adds email scheduling, subject-line A/B testing, and resend to non-openers. Unlimited custom automations, unlimited segments, and dynamic content are Premium-only — which means if branching journeys and behavioral triggers are on your roadmap, the honest Constant Contact price column is Premium at $275/mo for a 10,000-contact list.

Mailchimp gates just as aggressively but tops out deeper on the mid-tier. Essentials caps automations at four steps, which is why we call it a plan most growing senders pass through rather than stay on. Standard expands to around 200 steps and unlocks A/B testing and advanced behavioral segmentation, giving Mailchimp the stronger automation offer at the $135/mo price point than Constant Contact has at $160. Both, however, trail the automation-first tools: our reviews point workflow-heavy buyers toward ActiveCampaign or Brevo, which deliver substantially more capability below either vendor’s top tier.

Support and onboarding

This is the section that decides the overall verdict, and it is not close. Constant Contact includes live phone and chat support, staffed by marketing experts, on every plan — including the $12 Lite tier — plus live 1:1 onboarding. That package is genuinely rare at that price point anywhere in the category. Premium adds dedicated priority support on top.

Mailchimp locks phone support behind the Premium plan, which starts at $350/mo and is not even available below 10,000 contacts. Essentials and Standard get 24/7 email and chat; the free plan gets email support for the first 30 days only. The review data reflects the difference: Mailchimp’s G2 quality-of-support score is 8.0, clearly below its 8.7 ease-of-use mark, and hard-to-reach support is one of the three complaint clusters that dominate its Trustpilot page. If your marketing is run by one or two non-specialists who will occasionally need a human to walk them through a campaign, this single difference justifies Constant Contact’s price premium on its own.

Beyond email: events, websites, and SMS

The bundled extras point in different directions. Constant Contact ships event hosting with product sales and payments on every tier, plus social media posting and ads tools — a wide feature floor that makes it disproportionately valuable to chambers of commerce, associations, clubs, and local nonprofits that would otherwise pay for a separate events platform. Premium adds Google Ads Manager, SEO recommendations, and 500 US SMS messages a month. On integrations the vendor cites 300, while G2 lists 42 vendor-verified; either count covers the mainstream stack.

Mailchimp’s extras skew toward web presence: landing pages and a free website builder are bundled on all plans, and its marketplace of 300-plus native integrations plus an open API connects it to almost anything. Its SMS add-on starts around $20/mo, and there are no native push notifications. Choose by which bundle replaces a tool you would otherwise pay for: events and social favor Constant Contact, websites and integrations favor Mailchimp.

Independent ratings

The two platforms split the review sites along a revealing line. Business and admin reviewers mildly prefer Mailchimp: it scores 4.3/5 on G2 across roughly 12,885 reviews and 4.5/5 on Capterra across 17,626, against Constant Contact’s 4.1/5 on G2 (7,431 reviews) and 4.3/5 on Capterra (2,943). Those margins are small and reward Mailchimp’s editor polish and feature breadth.

Consumer sentiment tells the opposite story, and much louder. Constant Contact holds a 3.9/5 on Trustpilot across 1,852 reviews — respectable for an email vendor. Mailchimp sits at 2.6/5 across roughly 1,300 to 1,440 reviews, with about 67 percent of them at one star, and the complaints cluster on billing, surprise charges, and support you cannot reach. That pattern matches the pricing mechanics above: the product is easy, the bill is not. When a tool’s professional ratings and its customer ratings diverge by this much, we weight the customer side, because it measures what happens after the invoice arrives. It is a meaningful part of the 7.1 versus 6.8 spread.

Who should choose Constant Contact

Choose Constant Contact if you want a human on the phone without paying enterprise money. Live phone and chat support on a $12 plan, plus 1:1 onboarding, is a package Mailchimp cannot match below $350/mo. It is also the safer billing model for lists with natural churn, since unsubscribed contacts are simply not billed, and the claimed 98% inbox rate makes it the stronger pick for anyone whose revenue rides on delivery rather than design.

Event-driven organizations get disproportionate value from event hosting with payments on every tier, and nonprofits willing to prepay 12 months can take 30% off with a 501(c)(3) or 501(c)(6) letter — a deeper discount than Mailchimp’s 15% nonprofit rate. Budget honestly, though: at 10,000 contacts you will pay $120 to $275 a month depending on plan, send overages bill at $0.002 per email past your cap, and there is no published pricing at all above 50,000 contacts. Buy it for the support and the inbox rate, and budget for the contact tier you will occupy next year, not the one you occupy today. The full gotcha list is in our Constant Contact review.

Who should choose Mailchimp

Choose Mailchimp if ease of use is the deciding factor and your list is modest and well-groomed. The editor is the best in the category, the 8.7 ease-of-use score is earned, and the bundled landing pages and free website builder can replace a separate tool entirely. At 500 contacts, Essentials at $13/mo or Standard at $20/mo is genuinely reasonable, and Standard at 10,000 contacts undercuts Constant Contact’s list price by $25/mo while offering deeper automation. The free plan — trimmed in February 2026 to 250 contacts and 500 sends a month — is too thin to run a real program on, but it costs nothing to test the product against your own list.

The conditions are strict, though. You need to archive unsubscribed and duplicate contacts routinely, because Mailchimp bills every stored contact; you need to be comfortable never reaching phone support below $350/mo; and you need to accept mid-pack deliverability of about 89.5 percent. If any of those three gives you pause, the details are in our Mailchimp review — and note that both of these tools trail our category value benchmark, MailerLite, at a 9.2 Lab Score.

FAQ

Which is cheaper at 10,000 contacts?

On sticker price, Mailchimp: Standard is $135/mo against Constant Contact’s $160/mo. But Constant Contact’s 12-month prepay brings its effective rate to about $136/mo, and it bills only active contacts, while Mailchimp charges for unsubscribed, non-subscribed, and duplicate contacts. For a list with normal churn, the real-world costs are close to even — and Constant Contact’s Premium ($275/mo) undercuts Mailchimp’s Premium ($350/mo) outright.

Which has better deliverability?

Constant Contact, on the available evidence. It claims a 98% inbox rate based on 2025 Validity Everest qualified inbox tests — a vendor-published figure using a recognized third-party methodology. Mailchimp measured about 89.5% in EmailToolTester’s independent 2026 testing, ranking seventh of fifteen tools. The numbers come from different sources, but the direction is consistent with each platform’s review corpus.

Does either have a free plan?

Only Mailchimp, and it is thin: since February 17, 2026, the free plan covers 250 contacts and 500 sends a month, with a 250-per-day cap and email support for the first 30 days only. Constant Contact has no free plan but offers a 14-day trial with no credit card required, plus a separate 30-day money-back guarantee — roughly six weeks to test against your real list before any money is committed for good.

Why does Constant Contact win if Mailchimp is cheaper on paper?

Because the 7.1 versus 6.8 spread is built on what happens after purchase: phone support on every plan versus Premium-only, a 98% claimed inbox rate versus roughly 89.5% measured, billing that excludes unsubscribes versus billing that includes them, and a 3.9 Trustpilot score versus a 2.6 with about 67 percent one-star reviews. Mailchimp is the easier product; Constant Contact is the easier vendor to be a customer of.

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