MailerLite vs Brevo: Which Is Better for a Small Business?

The short answer: if you run a newsletter or email a modest list often, MailerLite is the cheaper, simpler choice. If you have a big list you mail infrequently — or you want email, SMS, WhatsApp, transactional email, and a basic CRM in one account — Brevo wins. The reason isn’t features; it’s math. The two platforms bill on opposite axes, and that one difference decides the winner before you ever open the editor.

Affiliate disclosure. We don’t have affiliate partnerships with any vendor yet, so every link below is a plain link to the vendor’s own site — nobody pays us for clicks or signups, and that won’t change what we recommend. If we add affiliate programs later, this article will say so.

The mechanism that actually decides this: subscribers vs. emails sent

Most email marketing comparisons list features. That’s the wrong starting point, because both of these tools cover the basics (drag-and-drop editor, signup forms, segmentation, automation on paid tiers) well enough that features rarely decide. What decides is the billing axis — and these two sit on opposite ends of it.

Think of it this way. Every email marketing bill has two underlying costs: storing a contact, and sending a message. MailerLite charges almost entirely for the first; Brevo charges almost entirely for the second.

• MailerLite bills by active subscriber count. Your list size sets your plan tier. Comfort plans cap monthly sends at 10× your subscriber tier; Power plans include unlimited sends. Send to your whole list daily or monthly — the price is the same.
• Brevo bills by monthly email volume. Your send allowance sets the price — but with a catch the marketing glosses over: the cheapest paid tiers cap how many contacts you can store (500 on the 5,000-email band, rising to 500,000 only at the 20,000-email band). A big list can force you onto a pricier tier even when your send volume is modest.

That produces an inverted cost curve, and once you see it, the verdict almost derives itself:

• Small list, frequent sending → MailerLite is cheaper. A fixed monthly price covers unlimited-ish sending.
• Large list, infrequent sending → Brevo is cheaper. Storing 20,000 contacts costs nothing; you only pay when you send.

This is the entire comparison in one paragraph. Everything below is just evidence for it — but you should still check the actual tables, because the magnitude of the difference is what matters for your budget.

Pricing head-to-head (researched 2026-10-01)

MailerLite overhauled its pricing in 2025–2026: the old Growing Business and Advanced plans were renamed Comfort and Power, prices rose, and the free plan shrank (from 1,000 subscribers down to 250 — check the current free-plan limits before relying on them). Paid plans bill by active subscriber — unsubscribed, bounced, and inactive contacts don’t count. Annual billing saves 10%.

Free plan notes: 2 user seats, 3 signup forms, 3 active automations, and MailerLite branding on every email that can’t be removed. Comfort adds no branding, templates, 50 automations, auto-resend, and 24/7 email support. Power removes the send cap (unlimited monthly emails), adds multiple automation triggers, unlimited seats, and 24/7 live chat.

Brevo prices by send volume, with contact storage capped per tier since its October 2025 restructuring: 100,000 on free, then 500 / 1,500 / 2,500 on the three cheapest paid bands, jumping to 500,000 from the 20,000-email band. The 2026 lineup, in USD:

Annual billing saves 10%. Brevo also sells pay-as-you-go email credits that never expire (one credit per email) — a genuinely good fit for seasonal or irregular senders who don’t want a monthly subscription. SMS and WhatsApp credits are sold separately on all plans.

One warning on Brevo’s structure: the gap between Standard (≈$18/mo) and Professional ($499/mo) is a cliff, not a step. If your send volume outgrows Standard’s bands, there’s no intermediate tier — you’re jumping straight into five-hundred-a-month territory. Size your program against the bands before you build workflows on Brevo.

A second warning — contact storage on the cheap tiers. The 5,000-email band holds 500 contacts, 10,000 holds 1,500, 15,000 holds 2,500; only from the 20,000-email band does the ceiling jump to 500,000. So a 3,000-name list you mail monthly needs the $32/mo Starter tier even though 3,000 sends fit the $9 tier. Brevo warns you at 85% capacity and bumps you to the next tier automatically — budget for the tier your list size requires, not just your send volume.

Two worked examples: see your own cost curve

Example 1 — newsletter, 2,000 subscribers, 8 emails per month (16,000 sends).

• MailerLite: the 2,500-subscriber tier is $33/mo on Comfort, which allows 25,000 sends — plenty. $33/mo.
• Brevo: you need ≈16,000 emails/month, so you’re in the 20,000-email band, where Standard (the tier with automation) runs roughly $65–69/mo. ≈$65/mo.

Frequent sender, modest list: MailerLite costs about half. The Comfort send cap (10× subscriber tier) is the only ceiling to watch — cross it and you’d need Power.

Example 2 — customer list, 10,000 subscribers, 1 email per month (10,000 sends).

• MailerLite: the 10,000-subscriber tier is $89/mo on Comfort — and you pay it whether you send once or thirty times. $89/mo.
• Brevo: 10,000 sends fit the 10,000-email band, but 10,000 contacts don’t — that band stores only 1,500 contacts, so storage forces you up to the 20,000-email band: $32/mo on Starter (automation capped at 2,000 contacts/mo, Brevo branding stays) or roughly $65–69/mo on Standard (full automation, branding removed).

Big list, infrequent sends: Brevo still wins, but the contact caps compress the savings — roughly $32–69/mo versus $89/mo. The “pay only for what you send” story is real, but you’re also paying for the tier your list size unlocks.

That’s the inversion. Same industry, same “email marketing software” label — but depending on where your business sits on the list-size-vs-frequency map, one of them costs 2–3× the other.

Features head-to-head

Bold takeaways from that table:

• If you only need email, MailerLite is the better-designed tool — simpler editor, cleaner automation builder, faster setup. Every extra channel in Brevo you don’t use is just interface complexity.
• If you need email plus anything else (SMS, WhatsApp, transactional receipts, a simple pipeline), Brevo consolidates 2–4 tools into one account. That consolidation can beat MailerLite’s price advantage — a separate SMS tool alone often costs $20+/mo.
• For e-commerce, MailerLite’s product-focused templates and recommendation blocks fit product newsletters better; Brevo handles the transactional side (order confirmations, shipping updates) in the same account via its API, which MailerLite charges extra for.
• AI is a tie-breaker, not a decider. Both have writing assistants and send-time optimization. Neither will move your open rates as much as a clean list and a good subject line.

Deliverability: no meaningful difference

This is the first-principles point worth restating, because “which has better deliverability” is one of the most-searched comparison questions — and the answer is: it doesn’t matter. Both run modern authenticated infrastructure, both land in the inbox at rates competitive for their price tier, and independent testers agree: EmailToolTester’s 2026 assessment rated Brevo and MailerLite a tie, and EmailDeliverabilityReport’s August 2026 seed-list tests put them within a tenth of a point of each other.

The honest mechanism: at this level, your own setup dominates — whether your domain has SPF, DKIM, and DMARC configured, whether your list is opt-in and cleaned, and whether subscribers open your mail. A sloppy list on either platform will underperform a disciplined list on either platform. We covered the full mechanism in our email deliverability guide. Don’t let deliverability decide this comparison.

The verdict: best for each business type

Pick MailerLite if:

• You run a newsletter or email your list multiple times a week.
• Your list is small-to-mid (up to ≈10,000) and growing.
• You want the simplest tool that still does automation properly.
• You want a predictable monthly price that doesn’t swing with send volume.
• Typical fit: creators, coaches, service businesses, small e-commerce stores.

Pick Brevo if:

• Your list is large but you email infrequently (monthly promos, seasonal announcements).
• You want SMS, WhatsApp, or transactional email in the same account.
• You send irregularly and like the pay-as-you-go credits that never expire.
• You want a basic CRM pipeline without buying a second tool.
• Typical fit: businesses with big customer databases, event-based or seasonal sellers, anyone consolidating channels.

The crossover to compute before you decide: if you’re a frequent sender, check whether your monthly sends fit inside MailerLite’s 10×-of-subscriber-tier Comfort cap. If you’re an infrequent sender on Brevo, check two things: whether Starter’s 2,000-contact automation cap covers your workflows (if not, you need Standard), and whether your contact count fits the band you’re buying — a 3,000-name list can force you past the cheapest tiers on storage alone.

Either way, start on a free plan first. MailerLite’s free tier fits a brand-new list of up to 250 subscribers; Brevo’s free tier fits testing at volume (300 emails/day). Both free plans keep the vendor’s branding on your emails — that’s the real cost of “free,” and it’s worth seeing whether you care before you pay to remove it.

Prices checked 2026-10-01 from current third-party pricing breakdowns. Both vendors change plans periodically (Mailer’s 2025–2026 overhaul is proof), so verify your exact tier on the vendor’s pricing page before committing.