MailerLite is the better buy for most US senders, but not for the reason people expect: the two entry prices are close, and the money is lost somewhere else. Mailchimp bills you for contacts who have already unsubscribed and MailerLite does not, and that gap widens every year your list ages. Choose Mailchimp anyway if you need US SMS or the breadth of its integrations, because MailerLite cannot match either.
This is the closest matchup in the category. Every other Mailchimp comparison we publish turns on a structural difference, a rival that bills per send or gives away ten thousand subscribers. MailerLite bills the way Mailchimp does, so the price tag decides nothing here. Plans and pricing checked July 2026, and every figure below is read live from our pricing database.
Pricing and plans compared
MailerLite's model is Per subscriber and Mailchimp's is Per contact: the same idea, where the bill rises with the size of your list. Entry plans are Comfort on MailerLite and Essentials on Mailchimp, priced at $12/mo (Comfort) against $13/mo (Essentials). As of the date above, those two numbers sit close enough that no one should choose on them.
The expensive difference is the definition of a billable contact. MailerLite bills Active subscribers. Mailchimp bills All contacts including unsubscribed.
Read that second one carefully. Someone who unsubscribed three years ago is still a billable Mailchimp contact today unless you have deleted the record yourself. They cannot be emailed and cannot buy anything, but they still push you up a pricing tier. Every list sheds a few percent a year to unsubscribes, so that churn is not a cleanup task on Mailchimp, it is a line item. MailerLite does not count them at all.
Both bill in US dollars, so no exchange rate is in play. Put your genuine active subscriber count into the calculator above rather than the number your current provider shows you, because on Mailchimp those are two different figures.
The free plans share a number and not much else
Both free plans allow the same contact count, 250 on each, which is why they get called equivalent and is the least important thing about them.
- MailerLite free plan: Yes (250 subscribers, 2,500 emails /mo)
- Mailchimp free plan: Yes (250 contacts, 500 sends /mo)
The send allowance separates them, and on a free plan the send cap always binds first. MailerLite's monthly limit is 2,500 emails, several times what Mailchimp allows at the same contact cap. A list at the contact cap emailed weekly clears Mailchimp's monthly allowance early and sits comfortably inside MailerLite's. That is the difference between a free plan you can operate on and one that runs out, and on its own it is a reason to start on MailerLite and pay only once the audience grows.
Who each one is built for
MailerLite suits small US businesses and solo operators who send to a list they own and want the bill to reflect the audience that still reads them: consultants, clinics, restaurants, nonprofits, newsletter writers who have outgrown a free-only tool. It rates 4.7 on Capterra against Mailchimp's 4.5, but on a far smaller sample: 2,277 reviews against 17,624. We would not decide anything on that gap.
Mailchimp suits businesses that sit inside a wider software stack and need email to connect to all of it, and businesses that market by text as well as email. It is also the tool any marketer you hire already knows, a saving that never shows up on the invoice.
Segmentation and automation compared
These two are closer than their reputations imply. Our data rates MailerLite's segmentation as Moderate (interests, activity, custom fields) and Mailchimp's as Moderate (tags, predicted demographics). Same depth, different axis: Mailchimp leans on tags plus predicted demographic modeling, so it guesses at who someone is, while MailerLite works from stated interests, recorded activity and custom fields, so it uses what someone did and told you. A store with purchase history gets more from the modeling, a service business whose signup form asks what people care about gets more from the fields.
On automation, both hold their real workflows back a tier: MailerLite is Basic (Comfort), Advanced (Power) and Mailchimp is Basic (Essentials), Advanced (Standard+). The plan you compare on price is not the plan that automates, on either side. A/B testing follows the same pattern: MailerLite's is Yes (Comfort+) and Mailchimp's is Yes (Standard+).
Where Mailchimp genuinely wins
MailerLite is our cheaper pick and loses several of these outright, which is worth stating plainly.
Integrations are the clearest gap: Mailchimp lists 300+ against MailerLite's 140+. If your email has to talk to a CRM, a help desk, a booking system and an accounting tool, the odds of a native connector are far better on Mailchimp, and paying for a connector you do not have to build is rational. E-commerce coverage differs in kind too: MailerLite connects to Shopify, WooCommerce, BigCommerce, Squarespace where Mailchimp covers Shopify, WooCommerce, BigCommerce, Magento, so a store on an enterprise cart has fewer options.
AI is a real Mailchimp advantage today: its toolset is Native (Intuit Assist, 20+ AI), considerably broader than MailerLite's Native (AI writing assistant). MailerLite's counter is a different kind of AI feature, an assistant integration that is Native MCP (official, beta) where Mailchimp's is Via 3rd-party (Zapier). MailerLite is easier to drive from an AI assistant, Mailchimp is better at generating campaign content inside the product.
Deliverability decides nothing here. Both rate high, and Mailchimp's is the better documented: High (89% in independent tests) against High.
US considerations
Both bill in US dollars, so your invoice is a fixed amount each month with nothing to convert.
On compliance, MailerLite is Yes (unsubscribe, sender ID, address footer) and Mailchimp is Yes (unsubscribe, sender ID, address footer). Both handle the three mechanics CAN-SPAM requires: an unsubscribe that works and is honored promptly, accurate sender identification in the From and Subject lines, and a valid physical mailing address in every campaign footer. Neither removes your own duty to mail only people who asked to hear from you.
Mailchimp's contact-billing rule has one compliance upside worth naming for fairness: because unsubscribed records are retained rather than dropped, the suppression list survives by default, making it harder to accidentally re-mail someone who opted out. You pay for that safety net whether you value it or not.
SMS is the hard split. MailerLite's US SMS marketing is No (separate Transactional product), so if you want text and email in one place MailerLite is out of the running. Mailchimp's is Yes (US SMS, paid add-on), available but priced separately. Either way, TCPA requires express written consent before a marketing text, and that opt-in is separate from the one you hold for email.
Neither locks you in. Contract required is No on MailerLite and No on Mailchimp, so a wrong choice costs you a migration rather than a contract.
Pros and cons for this matchup
MailerLite wins on billing only active subscribers, a free plan whose send allowance can carry a real weekly newsletter, a lower entry price, the higher US review score and a native AI assistant integration. It loses on having no US SMS product at all, a materially shorter integration list, thinner e-commerce coverage, a much smaller review base behind that rating, and an in-product AI toolset narrower than Mailchimp's.
Mailchimp wins on the widest integration ecosystem in the category, native US SMS as an add-on, the deepest AI feature set, better documented deliverability and being the platform every marketer already knows. It loses on charging you for contacts who have already unsubscribed, a free plan whose send cap makes it a trial rather than a tier, a higher entry price, and no segmentation advantage to justify either.
The verdict
For most US small businesses, MailerLite is the better buy, and the reasoning is arithmetic rather than preference. The two bill the same way at close to the same rate, so the only structural cost difference is that Mailchimp charges for people who have left your list. That charge compounds quietly, never appears on a pricing page, and is the most common way a business overpays for email without ever changing plan.
Choose Mailchimp when a capability decides it rather than the price. If you send marketing texts, MailerLite has no answer and the comparison ends there. If your email has to be wired into a stack of other tools, Mailchimp's connector list is worth real money in avoided integration work, and its AI toolset is ahead today.
Starting from zero, start free on MailerLite: its free plan carries a genuine weekly send and Mailchimp's does not. Run your real active subscriber count through the calculator above, then see the wider field in our US email marketing comparison or our Mailchimp alternatives guide. If you run an online store, Klaviyo vs Mailchimp is the more useful matchup.