Mailchimp vs MailerLite: One Raises Your Bill Without Asking, the Other Waits for You to Notice

This is the comparison people actually search for. Mailchimp against MailerLite draws 1,180 searches a month across both directions, more than any other pairing in this category that we can write about honestly.

And the two products answer the same question in opposite ways, which makes the comparison unusually clean. When your list outgrows your plan, one of them raises your bill without asking and the other waits for you to notice.

OUR TAKE: MailerLite is cheaper at the entry, more generous on its free tier, and will upgrade you automatically. Mailchimp is dearer, documents more, and will never change your tier by itself. Which of those is the feature and which is the risk depends entirely on whether you would rather be surprised by a charge or by a stopped campaign. A note on what this comparison is. We have measured Mailchimp in full: its pricing pages read as served from the United States, its terms read end to end, its ratings counted with the shared-ownership platforms counted once, and one hundred reviews cross-tabulated by theme. For the other product we read its own pricing page, served the same day from the same American address, and nothing else. No feature testing, no support testing, no review analysis. When that product gets its own cluster this article will be rewritten rather than appended to.

The entry prices, as each vendor publishes them

Product	Published entry	Basis the vendor states	Dollar amounts in visible text	Annual rate published
Mailchimp	$13 Essentials, $20 Standard	500 contacts, promotional for 12 months	12	no, sales-gated above 10,000 contacts
MailerLite	$12 Comfort, $25 Power	starting price, subscriber-based	3	not in visible text

MailerLite publishes the fewest figures of any rival in this category that publishes any, which is the one place where Mailchimp is the clearer of the two. Three amounts, and both of the paid ones are described as starting prices rather than as prices.

Mailchimp's twelve figures include four distinct prices, and every paid one is discounted fifteen percent for twelve months, with the rate afterwards unpublished to an American reader^[8].

So neither page lets you price your own growth. They fail at it differently. Both fail.

## The difference that matters most: what happens at the limit

MailerLite states the paid-plan rule in its own words: for paid accounts, when the number of active subscribers exceeds the current subscriber limit, the limit increases automatically and the card is charged for the next pricing tier^[23].

Mailchimp does the opposite, and is equally explicit. You choose the band and it is yours until you change it: "Your maximum contact count determines your pricing tier."^[7] Exceeding it produces a surcharge rather than a new tier, and the vendor tells you whose job the fix is: "If the increase is permanent, update your pricing tier to increase your contact limit, and we'll remove the additional charges."^[5]

Read those two rules beside each other and the choice is a temperament rather than a calculation. With MailerLite the campaign goes out and the invoice moves. With Mailchimp the invoice gains a surcharge that keeps running until somebody acts.

On the free tiers the two converge. MailerLite locks sending at 250 active subscribers^[23]; Mailchimp places a hold at 250 contacts^[5]. Same ceiling, same consequence. Identical, in effect.

Which contacts you pay for

This is where the real money is, and the two definitions differ enough to change which product is cheaper for the same list.

Mailchimp bills subscribed, unsubscribed and non-subscribed contacts, and excludes archived, cleaned and deleted ones^[5]. Archiving is a documented lever you operate yourself, and it preserves the contact's data and reports^[15].

MailerLite bills active subscribers, and publishes a timing rule that catches people: if you delete subscribers on the first and your billing date is the fifth, those subscribers keep counting until the fourth^[23].

Mailchimp has a timing rule too, and it is harsher: the bill is computed on "the peak contact total during your billing period", so a reduction mid-cycle does not help that cycle at all^[6].

Work out your own list under both definitions before comparing headline prices. For a list with many past unsubscribes the gap between the two totals is larger than the gap between twelve dollars and thirteen.

## Sending allowances, which are not the same unit

Mailchimp allowances sends as a multiple of the contact limit: ten times on Essentials, twelve on Standard, fifteen on Premium^[5]. At the entry band that is five thousand and six thousand sends a month.

MailerLite's Power plan advertises unlimited monthly emails, subject to a fair use policy, and its Comfort plan carries a monthly allowance that refreshes at the billing cycle^[23]. The vendor tells you what to do when you hit it: upgrade to Power for unlimited sending, or wait for the allowance to refresh^[23].

Those are not comparable numbers, and any comparison table that puts them in one column is misleading you. A multiple of your list size scales with your list. An unlimited allowance subject to fair use scales with the vendor's patience.

If you send frequently to a small list, the multiple is the binding constraint and MailerLite's model is better. If you send rarely to a large list, the reverse.

The free tiers

Both cap at 250, and that is where the similarity ends.

MailerLite's free plan includes 2,500 monthly emails, all three of its email editors, campaigns, automations, a website, a landing page and signup forms, plus an MCP connector for Claude and ChatGPT^[23]. API and MCP sending are reserved for paid plans^[23].

Mailchimp's free plan includes 500 monthly emails with a daily cap of 250, one audience, and a limited template selection^[5]. Fifteen capabilities read "Not included" in that column, including email scheduling, A/B testing, dynamic content and the generative AI features^[3]. Support is email only and only for thirty days^[3].

Five times the monthly sends on one side. On the other, a free tier that cannot schedule an email.

For anyone evaluating with a real list rather than a test list, MailerLite's free tier is the more useful trial of the actual product.

## Where Mailchimp is clearly ahead

Documentation, and it is not close. Mailchimp publishes the expensive answers without being asked: the peak-total billing rule, which contact statuses are billable and which are not, the send multiple for each tier, the send allowance each overage block carries, and the cancellation path through to the final click^[6][5][16].

On our scale Mailchimp earns 3.8 on the documentation axis, the highest mark we have given any product on it.

Usability evidence is the second place. Across the two app stores Mailchimp carries 74,983 ratings at 4.9 and 4.7, and the interface is the only review theme its users name more often in praise than in complaint, at 13% of high reviews against 3% of low ones. We have no comparable measurement for MailerLite, because we have not measured it.

Where MailerLite is clearly ahead

Price certainty. MailerLite's figures are starting prices rather than promotional ones, so there is no twelfth-month cliff to plan around. Mailchimp's card price rises by a derived fifteen twenty-nine, twenty-three fifty-three or four hundred and eleven seventy-six in month thirteen, depending on tier.

Generosity at the bottom. Five times the free sends, and the full feature set on every paid plan by the vendor's own description^[23].

And an enterprise path that is stated rather than implied: custom pricing above 200,000 subscribers with unlimited user seats and a dedicated success manager^[23]. Mailchimp routes everything above 250,000 contacts to sales as well, but its published Premium ceiling has five different answers across its own pages, which is a less comfortable place to start a negotiation.

## The demand, and why this pairing comes first

We measured which comparisons people actually search for before deciding which to write, and this one leads the category among products we can write about honestly: 1,180 searches a month across both directions.

Behind it sit Mailchimp against ActiveCampaign at 520, against Kit at 520, against Brevo at 350, against GetResponse at 140 and against Beehiiv at 130.

Two larger pairings exist and we cannot serve them yet. Mailchimp against Constant Contact draws 1,600 and Mailchimp against Klaviyo 720, and neither product is in our catalogue. We say so rather than quietly omitting them, and the vendor's own comparisons hub names Klaviyo more often than any other rival, which suggests the market and the vendor agree about the competitive set.

So this article is the largest comparison we can honestly make, not the largest that exists.

The ratings, and how to read them

Mailchimp carries five independent readings and they disagree sharply: Trustpilot 2.5 from 1,538, Gartner Peer Insights 4.3 from 1,268, TrustRadius 8.4 out of 10 from 2,885, the App Store 4.9 from 51,654 and Google Play 4.7 from 23,329.

Two cautions, measured rather than assumed. A displayed score is not the mean of the platform's own published distribution: Trustpilot shows 2.5 where its histogram averages 2.08, and Gartner shows 4.3 where its histogram averages 4.40. Both weight toward recency and here they push in opposite directions.

And the app stores measure the application while the review platforms measure the commercial relationship. Seventy-five thousand ratings at nearly double the score is not a contradiction; it is two different questions.

We have no equivalent figures for MailerLite, because we measured its pricing page and nothing else. Any score you see quoted for it in a comparison article, including the absence of one here, should be treated accordingly.

## What neither page lets you do

Price your own growth. That is the honest summary of both pricing pages, and it is worth stating because it is the thing a buyer most wants.

Mailchimp publishes twenty contact bands and the price of two of them, with the selector that would reveal the rest served disabled in the American markup^[2]. Its ceilings are three hundred and eighty-five dollars at 50,000 contacts and eight hundred at 100,000, printed on a comparison page nothing links to^[3].

MailerLite publishes three figures, two of them described as starting prices, and an enterprise tier above 200,000 subscribers with custom pricing^[23].

So in both cases you can price today and not next year. The difference is that MailerLite will move you up the ladder automatically when the time comes, and Mailchimp will leave you on a surcharge until you move yourself.

Neither is a reason to pick one. Both are a reason to ask for the ladder in writing before you start.

What the review themes say about living with Mailchimp

A comparison built on pricing pages tells you what signing up costs. The reviews tell you what the year afterwards is like, and we read one hundred of them in full and sorted them by star rating.

Theme	Share of 1-2 star reviews	Share of 4-5 star reviews	Gap
Billing and charges	33%	3%	+30
Support	52%	26%	+27
Cancellation	17%	0%	+17
Locked out of the account	16%	0%	+16
Price and increases	11%	0%	+11
Contact limit	3%	0%	+3
Interface	3%	13%	-10

Four of those rows are commercial and one is about access to your own account. The contact limit, which the whole of this comparison has been about, appears in three percent of unhappy reviews.

That is a useful corrective. The pricing structure is where the money is, but it is not where the anger is. The anger is in billing disputes, in support that does not answer, and in sixteen percent of low reviewers describing days spent trying to get back into an account they pay for. None of those appear in any feature table.

The row that runs backwards matters too. The interface is named more often in praise than in complaint, which is rare in this corpus, and it is supported by 74,983 app store ratings at 4.9 and 4.7. People like using this software.

So weigh the pricing analysis for the signing-up decision and the review analysis for the staying decision. They point in different directions and both are measured.

## A worked example, on the same list

Take a list of nine thousand people built over three years. Six thousand five hundred are active subscribers, two thousand have unsubscribed, and five hundred are dead addresses the platform has already cleaned.

On Mailchimp that list is eight thousand five hundred billable contacts, because unsubscribed contacts count and cleaned ones do not^[5]. That puts it in the five thousand to ten thousand band. An archiving pass on the two thousand unsubscribes would move it to six thousand five hundred, which is the same band, so in this case the lever does not save money. At nine thousand it would have.

On MailerLite that list is six thousand five hundred active subscribers, and when it crosses whatever the next band is, the tier moves and the card is charged automatically^[23].

Two things follow. First, the same people produce two different numbers, and the gap is the two thousand unsubscribes. Second, the archiving lever only pays when it moves you across a band boundary, which means the habit is worth most to accounts sitting just above one.

Work out where your own boundaries are before deciding which product is cheaper. The headline dollar between twelve and thirteen is noise next to a two-thousand-contact definitional difference.

Three things we could not compare

Support. We have published entitlements for Mailchimp and the review evidence above, and nothing at all for MailerLite. We did not open tickets with either vendor, so neither support assessment rests on our own experience.

Deliverability. Neither vendor publishes rates we could verify, and both make claims. We measured neither and we are not going to repeat marketing copy as a finding.

Feature depth. We read two pricing pages. Mailchimp's plan comparison table gave us 225 counted cells^[3]; MailerLite's page describes its tiers in prose and says every paid plan gets the full feature set^[23]. Those are not comparable artefacts, and a feature table built from them would be a guess wearing a grid.

How to choose, in three questions

Would you rather be charged without asking, or have a campaign held? That single question separates these two products more than any feature.

Does your list carry a lot of past unsubscribes? If so, price it under both definitions, because Mailchimp's archiving lever can move your band and MailerLite's active-subscriber basis may already exclude them.

And how often do you send relative to your list size? Divide monthly sends by subscribers. Above twelve, Mailchimp's multiple becomes the constraint and MailerLite's unlimited Power plan is the simpler answer.

## What we would check before committing either way

For Mailchimp, ask for the list price for your band in writing before the promotional twelve months start, and ask the price of an add-on contact block, which is the unit every overage is charged in and is published nowhere^[6].

For MailerLite, ask what the next pricing tier costs before you are automatically moved into it, because automatic upgrade is only a feature if you know the destination. Ask where the fair use line sits on unlimited sending. And ask how active subscriber is defined, since that definition is the meter.

Then compare two annual totals rather than two monthly prices. The headline dollar between these two products is the least informative number in the comparison.