Unitpost vs Brevo
Brevo is An all-in-one marketing platform (formerly Sendinblue) covering email, SMS, chat, and CRM, with a transactional API alongside. Unitpost covers transactional and marketing email in one product with unlimited contacts on paid plans and a free tier of 3,000 emails a month. Across 11 compared capabilities, Unitpost leads on 7 and Brevo leads on 3.
Which should you choose?
Choose Brevo if
- You want a full marketing suite with CRM, landing pages, and chat
- You need SMS or WhatsApp today — we are email-only right now
- Their free tier volume matters more to you than developer experience
- Your primary users are marketers rather than developers
Choose Unitpost if
- You are a developer and the API is your primary interface
- You want unlimited contacts instead of contact-count pricing
- You want a clean transactional API rather than one bolted onto a marketing suite
- You want code-mode templates, an SMTP relay, and an MCP server for agents
What Brevo does well
Stated plainly, because a comparison that pretends otherwise is not worth reading.
- The most generous free tier in the category at around 9,000 emails a month
- Genuinely multi-channel today — SMS, WhatsApp, and chat, where we are email-only
- A built-in CRM and landing pages for teams that want one marketing suite
- Marketing automation well beyond what we ship
Pricing and free tier
- Unitpost
- 3,000 emails/month free, 100/day, no credit card
- On paid plans your monthly price is a sending allowance you spend at your tier's rate, and it refreshes every month. Marketing and unlimited contacts are included rather than billed as add-ons.
- Brevo
- 300 emails/day (~9,000/month)
- Marketing plans by contact count plus separate transactional email credits, with higher tiers gating channels like WhatsApp.
Brevo pricing and free-tier details last verified 2026-07. Providers change these often — check their pricing page before making a decision.
Feature comparison
| Capability | Unitpost | Brevo |
|---|---|---|
| Free tier volume | 3,000 emails/month, 100/day, no credit card | 300 emails/day, roughly 9,000/month |
| Channels beyond email | Email only today; SMS and WhatsApp are planned, not shipped | Email, SMS, WhatsApp, and chat available now |
| CRM and landing pages | Not offered — we are infrastructure, not a marketing suite | Included |
| Contact pricing | Unlimited contacts on paid plans | Marketing plans priced by contact count |
| Developer experience | API-first: one versioned REST surface, official SDKs, an SMTP relay, and an MCP server | A capable API, but the product is designed for marketers first |
| Code-based templates | React/TSX code mode over the same document as the builder | Visual editor with HTML import; no code-first workflow |
| Idempotency keys | Idempotency-Key on sends, 24-hour dedupe window | Not offered |
| Idempotency keys on send | Idempotency-Key on sends, 24-hour dedupe window | — |
| Webhook secret rotation without dropped deliveries | svix-compatible HMAC-SHA256 with a 24-hour dual-signing rotation grace | Rotation replaces the secret immediately |
| Hybrid template editing | Visual drag-and-drop and React/TSX code mode over one shared document — the same @unitpost/email library renders both | Varies |
| One-key import from Brevo | Migration Assistant moves contacts, segments, topics, templates, domains, suppressions, and webhooks in about 4 minutes with a read-only key | n/a |
How do I migrate from Brevo?
Paste a read-only Brevo API key into the Migration Assistant and it previews everything that would carry over — contacts, segments, topics, templates, domains, suppressions, and webhooks. Nothing is written until you accept, and Brevo keeps sending the whole time, so there is no downtime. It takes about four minutes.
Two things do not carry over: sending domains must re-verify with freshly generated DKIM keys, and webhook signing secrets are regenerated. Dynamic segments import as a static snapshot of their members.
Frequently asked questions
Brevo's free tier is bigger — why pick Unitpost?
It is bigger, at roughly 9,000 emails a month against our 3,000, and if raw free volume is the deciding factor you should take theirs. The reason to pick us is what the product is for: Brevo is a marketing suite that also has an API, and Unitpost is email infrastructure that a developer drives. If your primary interface is code, that difference shows up daily.
Does Unitpost support SMS or WhatsApp?
Not yet. Email only today. The pricing model is built for it — your monthly allowance is a dollar balance you spend at each channel's rate — and SMS, WhatsApp, and Telegram are on the roadmap, but nothing is shipped. If you need SMS now, Brevo has it and we do not.
Can I replace Brevo entirely with Unitpost?
Only if you are using it for email. We cover transactional and marketing email, contacts, segments, topic-based unsubscribes, and campaigns. We do not have a CRM, landing pages, live chat, or SMS. Teams using Brevo as their whole marketing stack should expect to keep parts of it.
Switching from Brevo?
Try it on the free tier first
3,000 emails a month, no credit card. Verify a domain, send a test, and preview the migration before you move anything.