Brevo is the better documented fit for a small business with a large list that sends occasionally, because it prices by emails sent rather than by contacts stored, while Mailchimp is the better documented fit for a team that wants the most familiar editor, the widest template and integration library, and is happy to pay for list size. This comparison of Brevo and Mailchimp centers on one question: do you want to pay by email or by contact?
The short version for 2026: if you have 10,000 subscribers but send a newsletter twice a month, Brevo's send-based pricing is documented as the cheaper structure. If you send often to a small, engaged list and want polished design tools plus a large app marketplace, Mailchimp's contact-based tiers are easier to justify. Both publish prices, and both change them, so verify current figures on each vendor's pricing page before buying.
How We Compared Brevo and Mailchimp
We compared the two tools from each vendor's public pricing and feature pages, third-party pricing breakdowns published in 2026, and patterns in verified user reviews. We did not run campaigns through either account, so nothing here is a measurement of deliverability or editor speed. Where third-party sources disagreed on a figure, we say so rather than pick one. The yardstick is the same for both: documented entry price, how the bill scales with list size and send volume, automation access on lower tiers, and the limits of the free plan.
The Core Difference: Billing by Emails Sent or Contacts Stored
Brevo documents its paid plans as based on monthly email volume. Third-party sources from mid-2026 report a free plan with a daily cap of 300 emails, a Starter plan from about $9 a month, a Standard plan from about $18 a month, and a Professional plan from about $499 a month, with Enterprise custom. Sources disagree on contact limits for the lower tiers, so check the pricing page for any contact caps before assuming unlimited storage.
Mailchimp documents contact-based tiers: Free, Essentials, Standard and Premium. Third-party sources report Free capped at 250 contacts and 500 monthly sends after a January 2026 cutback, Essentials from about $13 a month for 500 contacts, Standard from about $20 a month for 500 contacts, and Premium from roughly $350 a month. Reviewers also note that Mailchimp bills for every contact on the list, including unsubscribed ones, unless they are archived. That is the single most common cost surprise in published reviews.
What a Sample Bill Looks Like at Different List Sizes
Exact quotes depend on volume and billing term, so treat the table as a directional guide drawn from the 2026 third-party figures above, not a quote. One third-party estimate puts Mailchimp Standard near $100 a month at 10,000 contacts and near $700 a month at 100,000. Brevo does not publish a matching contact-based figure, because its price moves with monthly sends. A business mailing a 10,000-person list twice a month sends about 20,000 emails, which is the kind of volume where Brevo's Starter or Standard tiers are documented to land well below that Mailchimp estimate.
| Factor | Brevo | Mailchimp |
|---|---|---|
| Pricing basis | Monthly emails sent | Contacts on the list |
| Free plan | About 300 emails a day (verify current) | About 250 contacts, 500 sends a month (verify current) |
| Entry paid plan | Starter from about $9 a month | Essentials from about $13 a month |
| Automation | Fuller on Standard; Starter reports conflict | Advanced automation on Standard and above |
| Extra channels | SMS, WhatsApp, transactional email and CRM documented | Landing pages, social ads, basic CRM documented |
| Unsubscribed contacts | Not billed by contact | Billed unless archived |
| Best fit | Large list, occasional sends | Smaller list, frequent sends, design focus |
Where Mailchimp Still Wins
Mailchimp's strengths are documented and long-standing: a widely used drag-and-drop editor, a large template library, a big integration marketplace, and the most tutorials and agency familiarity of any email tool. Published reviews also credit it for approachable reporting and audience tagging. For a business that sends weekly to a list of a few thousand engaged subscribers, the contact-based bill stays reasonable and the polish is a genuine advantage.
The documented weaknesses are mostly financial. Free-plan limits have tightened over the past few years, contact-based pricing climbs quickly as a list grows, and several advanced features sit behind Standard or Premium. Reviewers who outgrow the free plan often describe the jump in cost as the reason they went looking for alternatives.
Where Brevo Wins, and Where It Does Not
Brevo's documented advantage is pricing shape. A large, slow-moving list does not inflate the bill, the free plan includes a usable daily send allowance, and the platform bundles SMS, WhatsApp, transactional email and a lightweight CRM under one login. Our best email marketing software roundup places that bundling among the reasons budget-focused teams shortlist it.
The trade-offs are equally documented. Reviewers describe the editor and template library as less polished than Mailchimp's, the automation builder as capable but less intuitive at first, and the free plan as carrying Brevo branding in sent emails. Sources also disagree about which automation features sit on the entry tier, which is a reason to read the current plan comparison line by line before committing. If you send more than a few times a week, Brevo's volume-based pricing can also stop being the cheaper option, because the bill rises with sends.
Deliverability, Support and Migration
Neither vendor can promise inbox placement, and we have no hands-on deliverability data, so be wary of any comparison that declares a winner on that point. What is documented: both support authenticated sending domains, both publish import tools for CSV lists, and both let you export contacts. Mailchimp's archive-versus-unsubscribe distinction matters when you migrate, because cleaning the list first can cut the bill before you leave. Support access is tiered on both: free plans lean on documentation and email, and phone or priority support sits on higher paid plans.
Which One Fits Which Small Business
Choose Brevo if your list is large relative to how often you send, if you want email plus SMS or transactional messages in one place, or if predictable cost matters more than template polish. Choose Mailchimp if your list is modest, your sends are frequent, design polish and third-party integrations matter, or your team already knows the tool. If you are still weighing the wider field, the full email platform comparison covers further alternatives. Run your own numbers with each vendor's calculator using your real list size and monthly send count, since that pairing decides the winner.
The bottom line: Pick Brevo when you have a big list and send occasionally, pick Mailchimp when design polish and integrations on a modest list matter more, and verify both vendors' current pricing against your real list size and monthly sends before you commit.
