Is day3 cheaper than Brevo?

Not necessarily, and it would be dishonest to imply otherwise. Both meter emails sent. Compare the two plans at your volume directly, and pick on product rather than on model.

Why switch from Brevo to day3 at all?

Scope. If you use Brevo only to email your users about your product, most of what you are logging into is not for you. day3 is that one job with nothing else attached, plus transactional on the same allowance and domain.

No. Email only, and that is not a roadmap item. If a campaign needs an SMS step, day3 is the wrong tool.

Can I bring my Brevo contacts and attributes?

Yes, by CSV or API. Attributes map to custom fields, unsubscribes import as unsubscribes with the date they left on, and your suppression list should go in first so nobody gets re-mailed by the migration.

All comparisons

day3 vs. Brevo

A Brevo alternative for teams who only want the email part.

Brevo, formerly Sendinblue, already prices by emails sent rather than by contact count, so the argument day3 usually makes about the contact tax does not apply here.

	day3	Brevo
Pricing model	By emails sent each month	Also by emails sent, with paid add-ons per channel
Subscriber limits	Unlimited on every plan	Unlimited contacts too
Product scope	Product updates and transactional email, on purpose narrow	Full suite: CRM, SMS, WhatsApp, chat, landing pages
Surface area	One composer, one audience list, one API	Many modules, most of which a software team will not use
Best for	Software teams emailing their own users	Businesses running sales and multi-channel marketing together
Starting price	$1/mo for 1,000 emails	Free tier with a daily cap, then priced by sends

Comparison reflects each product's pricing model and scope, not specific prices, because those change, so always check the latest on Brevo's own site.

The core difference

This one is about scope, not the meter. Brevo is a suite: email, SMS, WhatsApp, chat, a sales CRM, landing pages and automation across all of it. day3 sends product updates and transactional email from one authenticated domain and has no ambition beyond that. Narrow is the feature, and it is also the reason to stay away if you need the rest.

The same numbers, both ways

10,000 users emailed twice a month, plus the password resets and receipts the app sends.

On day3

$8/mo

25,000 sends a month fits the 25,000-email plan. 10,000 subscribers costs nothing, on this plan or any other.

On Brevo

Depends

Brevo meters the same way, by emails sent, so the two bills are genuinely comparable here and the decision comes down to which product you would rather use. We don't print their price here, because it changes and a stale figure would be worse than none. Check it on their own site and run these numbers through it.

Why teams move to day3

Far less to hold

One composer, one list, one API key. Nothing to switch off, nothing to learn past the first send.

Built for product email

Changelogs, launch notes and receipts from the same domain and the same allowance, with per-email delivery status.

EU-only hosting, named openly

Every sub-processor is listed by name, data stays in the EU, and a DPA is on offer without asking sales.

When Brevo is the better choice

Stay with Brevo if you use more than the email module. A sales CRM next to your campaigns, SMS or WhatsApp in the same workflow, or chat on your site are real capabilities that day3 will never have. Brevo's send-based pricing is also fair on its own terms, so there is no bill-shaped reason to move. Switch only if the suite is more tool than you want to own.

Moving your list across

Five steps, in this order. The first one is the one people skip.

1

Bring your suppression list first

Push the addresses that bounced, complained, or asked never to be mailed again before you import a single contact. Do it in this order and day3 refuses those rows on the way in, which is the guard working rather than an error. Do it after and you have a window where a re-import can mail someone who already left.

2

Import the contacts

Export your Brevo contacts to CSV with their attributes and import them into a day3 audience. Attributes become custom fields that work as merge tags. day3 dedupes, honours suppressions and reports the rows it refused so you can fix and retry just those.

3

Carry the opt-outs across as opt-outs

Contacts already marked unsubscribed import with that status and the date they left on, so your new tool honours a decision made in your old one. Nobody gets re-subscribed by a migration.

4

Verify the sending domain

Connect Cloudflare and day3 publishes DKIM, SPF and DMARC for you, then rechecks until the domain verifies. On another DNS host you get the records to paste. Authenticating the domain you already send from is what keeps your reputation intact through the move.

5

Send one real campaign to yourself

A test send goes to addresses you name, through the same pipeline and the same tracking as the real thing. Compare it against your old tool's output before you point the whole list at it.

What doesn't come across

The CRM, SMS and WhatsApp channels, chat, landing pages and any automation that spans them stay behind, because day3 is email only. Brevo's multi-channel workflows have no equivalent here. If a deal pipeline or an SMS step is load-bearing in your setup, this move breaks it.

Questions

Is day3 cheaper than Brevo?: Not necessarily, and it would be dishonest to imply otherwise. Both meter emails sent. Compare the two plans at your volume directly, and pick on product rather than on model.
Why switch from Brevo to day3 at all?: Scope. If you use Brevo only to email your users about your product, most of what you are logging into is not for you. day3 is that one job with nothing else attached, plus transactional on the same allowance and domain.
Does day3 do SMS?: No. Email only, and that is not a roadmap item. If a campaign needs an SMS step, day3 is the wrong tool.
Can I bring my Brevo contacts and attributes?: Yes, by CSV or API. Attributes map to custom fields, unsubscribes import as unsubscribes with the date they left on, and your suppression list should go in first so nobody gets re-mailed by the migration.