Comparison · Evidence checked 2026-10-18

Sender vs Brevo

A practical, evidence-led decision guide. Product capabilities and limits are separated from anything that would require hands-on testing.

Sender and Brevo make an unusually useful comparison when a business has a modest list but an uneven sending schedule. The monthly total can look manageable while a single launch exceeds a daily ceiling. Price the day that matters as well as the average month.

Start by evaluating Sender for a newsletter and its welcome sequence. Evaluate Brevo alongside it when the brief also includes transactional or other supported communication channels, each with its own product and allowance. Neither choice should rest on the idea that unlimited contact storage or every automation is included in the smallest visible offer.

This comparison reuses dated official evidence and adds an original workload model. BenPicks has not compared inbox placement, sent a live campaign through either provider, or measured revenue from a migration.

Sender vs Brevo: the free limits answer different questions

Sender's retained pricing evidence lists a permanent free allowance of 2,500 subscribers and 15,000 monthly emails. The public pricing table checked on 18 October 2026 distinguishes monthly volume from daily limits and shows no daily email limit. Its fourteen-day Pro trial is separate: a trial feature is not necessarily available after returning to the free offer.

Brevo's official help rechecked on 18 October 2026 lists 300 emails per day on the free plan, with unused daily capacity not accumulating. Paid volume selections also have contact-storage and feature boundaries. Its help pairs 5,000 monthly sends with up to 500 stored contacts, 10,000 with 1,500, and 15,000 with 2,500 on Starter. A large stored list receiving occasional messages does not automatically fit a cheaper paid send tier; quote storage and sending together.

ConstraintSender evidenceBrevo evidence
Free sending meter15,000 monthly emails300 daily emails; no rollover
Audience check2,500 free subscribersFree storage up to 100,000 contacts; free automation limited to 2,000 contacts
Trial boundaryPro trial is not the permanent free planTrial or paid entitlements must not be assumed on free
Paid quoteSelect subscribers, billing period and currencySelect volume, contact capacity, features and region

The table is not a deliverability comparison. Having capacity to submit a message does not establish that it reaches an inbox, complies with consent requirements or produces a sale.

A 1,200-person launch exposes the daily constraint

Imagine 1,200 permission-eligible subscribers receiving four full-list campaigns in a month. One hundred and twenty included newcomers also receive three welcome messages. The original planning total is 5,160 recipient-sends: 4,800 for campaigns plus 360 for welcomes. The newcomer group is already in the 1,200-person list.

That audience and monthly volume fit Sender's documented free numerical ceilings. The feature requirements still need checking. Brevo's 300-per-day free ceiling cannot accommodate a time-sensitive 1,200-recipient campaign on the same day. Even reserving the entire daily capacity for that job requires at least four days arithmetically, before welcome messages or other traffic. This is not a recommendation to split a launch or a claim about how the product schedules it.

Increase campaigns to twelve and the month becomes 14,760 sends. Sender's 15,000 allowance then has only 240 sends of headroom. If an assumed 2% of that planned volume needs additional separately counted sends, the model reaches 15,055.2, or 15,056 whole sends after rounding up. It exceeds the allowance by 56. The additional-send assumption is a sensitivity input, not a statement that either vendor bills retries at that rate.

A second scenario doubles the list to 2,400 subscribers and the welcome group to 240. Four campaigns plus welcomes use 10,320 sends; twelve use 29,520. The audience still fits Sender's free subscriber ceiling, but the busy-month sending does not. Subscriber capacity alone would therefore choose the wrong plan. Brevo's free automation boundary also needs attention if the automated population exceeds its documented 2,000-contact limit; the larger storage figure does not remove that separate feature limit.

What the paid entry price does not buy

Sender's retained 17 October monthly USD selection at 500 subscribers showed Standard at $9 with 6,000 sends and Professional at $15 with 12,000. These are not covering quotes for 1,200 or 2,400 subscribers. The fresh public page also shows an annual introductory promotion, so its displayed annual-equivalent amount must not be relabeled as the ordinary monthly invoice.

The public pricing descriptions distinguish Standard features such as removing Sender branding, A/B testing and three role-based seats from Professional's ten seats and advanced automation description. Inspect the exact workflow rather than assuming every branch or multichannel action belongs to the free offer. A plan's SMS menu likewise does not establish free sending to every country.

For Brevo, this research does not retain a feature-matched same-currency checkout total for the modeled workload. Its official pricing page was reachable in the 18 October public check but did not provide readable selected-plan values through that retrieval. Obtain a current regional quote covering the busiest day, monthly volume, storage and required automation. We deliberately do not invent a price or calculate a percentage saving from unrelated entry offers.

Separate the receipt from the promotion

A customer waiting for a password reset is not the same operational problem as a newsletter waiting for tomorrow's allowance. If transactional messages are required, identify the appropriate service, sender authentication, integration, limits and support arrangement separately. A marketing plan table does not establish that every transactional or multichannel requirement is included.

For SMS or another channel, define destination, consent, message length and the charged unit before comparing costs. Keep the subtotal separate from email. One common interface can still contain multiple meters. A team unable to reconcile those meters may prefer a smaller, clearly scoped setup, even if the larger product advertises more capabilities.

Automations need a stop rule, not just a start button

Take a welcome journey with three steps. A person subscribes, receives the first message, then unsubscribes before the next step. Define the expected result before evaluating either service. Repeat with someone who purchases midway through a promotion and someone imported twice. Inspect exclusion, re-entry and consent behavior in the selected permanent plan using permitted demonstration records.

These checks are proposed evaluation tasks, not BenPicks findings. If a vital rule is trial-only or requires a paid tier, price that tier. If an integration supplies data late, ask what happens to an already scheduled message. A feature named automation does not establish equivalent behavior in both products.

Migration and the reason to stay

Retain consent records, suppressions, custom-field meanings, forms and the active sequence rules before moving. Keep the original export. Decide how to handle current sequence membership so people do not receive a duplicate welcome simply because an import succeeded. The migration checklist provides a practical structure.

Our hypothetical switch allocates three hours to mapping, four to rebuilding and two to checks. At 30 common-currency units per hour, that is 270 units, before overlap subscriptions. An assumed verified saving of 15 units monthly would take 18 months to recover that labor alone. This does not establish a real Sender–Brevo saving or migration duration.

Choose Sender for evaluation when the newsletter, audience and permanent feature limits cover the job. Choose a covering Brevo offer for evaluation when the communication requirement extends beyond that brief and the team understands the separate meters. Stay where you are when neither the missing workflow nor the verified cost difference justifies a move. Sender vs MailerLite covers a different newsletter shortlist.

Download the original calculations or enter a different basket in the email cost calculator. Sources: Sender pricing ↗, Sender subscriber counting ↗, Brevo plan overview ↗, and Brevo volume/contact rules ↗. Sender selected quotes retain their 17 October date; public Sender features and Brevo plan/storage rules were checked 18 October 2026. Neither provider has a confirmed active BenPicks affiliate link in this research.