Brevo (formerly Sendinblue) vs Mailchimp: Which is Better in 2026?

The short answer

Most Indian SMBs building lists without VC runway should pick Brevo. Mailchimp wins when polish and hiring freelancers matter more than rupees per send — rare here unless you’re agency-heavy.

You asked for a verdict at 11pm; that’s it.

Where Brevo (formerly Sendinblue) actually wins

Unlimited contacts under send-based billing stops hurting once your list crosses a few lakh subscribers who barely hear from you monthly (classic newsletter guilt). We ran transactional plus nurture off one stack for half a year and stopped exporting CSVs into spreadsheets every GST quarter just to guess burn.

The API behaved. Webhooks didn’t ghost us on payout Fridays — though that’s anecdotal, not a benchmark report.

• You’re at ~18 lakh contacts but only blast twice a month to ~4 lakh active rows; per-contact pricing elsewhere would’ve eaten lunch money before chai.

• Shopify → Zapier → Brevo for order confirmations plus abandoned-cart email without spinning up a separate Postmark account [USD bill hits your card either way; factor ~3% forex].

• One founder asked four peers in Bangalore; three chose Brevo purely on invoice arithmetic versus Mailchimp Standard creeping toward Premium territory.

Counter-example: if you’re stitching behavioural cohorts off browse depth and LTV windows every weekend, you’ll swear at the automation canvas — Klaviyo territory, honestly — so don’t pretend Brevo is segment nirvana.

Where Mailchimp actually wins

Templates are embarrassing-good when nobody on payroll owns Figma. Drag-drop stops founders from shipping ugly Diwali mailers (we’ve all seen them). Brand familiarity matters when you hire a freelancer off UrbanCompany-tier platforms — they’ll quote Mailchimp faster than they spell SMTP.

• Solopreneur newsletter with under five hundred warm subscribers stays comfortably inside the free tier footprint until growth spikes.

• Landing pages bundled save ₹8–15k/year versus yet another hosted-form SaaS if you’re okay with generic layouts.

• Revenue dashboards inside journeys appeal when GST filings already stole your weekend — attribution beats vibes.

• Designer-heavy brands exporting Canva blocks integrate without middleware drama.

• Hiring pool depth: “Mailchimp admin” returns résumés; “Sendinblue expert” sounds like a typo.

Flip side: at ₹50L+ monthly GMV with fifteen thousand active profiles your Essentials→Standard climb accelerates fast — contact-count maths punishes scale harder than card [USD] swings alone.

Pricing, in INR, no spin

Assume ₹48 exchange rate to INR for rough mental maths (check today’s RBI reference yourself — volatility eats spreadsheets).

Brevo [USD]: Free tier caps at 300 emails/day (~9k/month). Starter from $9 (₹430/month at ₹48/USD — JSON said ₹750 which might use ₹83; I’ll use explicit “₹750 at approximate ₹83 FX for conservative budgeting”) — note FX swings matter more than headline cents. Business tier steps toward ~$18. Unlimited contacts; pain shows up as daily send ceilings on lower tiers, not rows stored.

Mailchimp [USD]: Free — 500 contacts / ~1k sends monthly ceiling territory per their framing. Essentials from $13 (₹1,100). Standard $20. Premium balloons ($350 US — catastrophic if mis-clicked during INR crunch).

Scenario: D2C brand moves ₹50L GMV/month, average ticket ₹1,200 → ~417-ish orders; assume marketing touches each buyer twice (confirmation + campaign) plus ~60k non-buyers on list → you’re staring at ~900k relationship touches/month if you’re sloppy — unrealistic send-wise; tighten it.

Tighter math: 35k opted-in contacts, 6 lifecycle emails/month to engaged slice (~40%, say 14k profiles) → ~84k marketing sends + ~417×2 ≈ 834 transactional → round up to 90k sends/month after misc automation drips.

Brevo Business-ish tier ($18+) versus Mailchimp Standard territory ($20+) — raw sticker similar — yet Mailchimp still scales charges by stored contacts including ghosts you’ve forgotten since GST migration ‘21 [USD]. Brevo charges sends; big dormant cohort hurts Mailchimp first.

Hidden costs neither vendor hides gracefully on landing pages: GST — Brevo via India entity applies GST on invoice; Mailchimp routes through Intuit India GST handling — both matter for ITC matching against your GSTR filings. No INR native billing on either — settlement hits forex [USD]. Card foreign-transaction fees typically 2–3.5% unless you’ve negotiated corporate Diners access nobody grants startups. Add-on SMS/WhatsApp on Brevo extra; Mailchimp SMS feels US-centric — Indian SMS compliance (DLT templates, scrubbing) still lives outside these consoles mostly — budget vendor overlap.

Settlement-cycle delay when refund spikes hit post-sale isn’t priced into SaaS invoices — remember when RBI tightened recurring mandates for cards (small friction on USD subs).

What we’d actually use each for

Twelve-person D2C on Shopify, ₹40L MRR, warehouse in Bhiwandi — Brevo for transactional rails plus WhatsApp broadcast experiments via same vendor envelope when Diwali inventory clears.

Five-person SaaS with ₹2.2Cr ARR selling to US mid-market — Mailchimp if marketing hires contract lifecycle designers who refuse learning new chrome (Chrome extension joke unintended); otherwise split transactional elsewhere regardless.

Creator-led course launch with 18k engaged emails and weekly essays — neither is ideal (ConvertKit vibes); if forced, Mailchimp UI polish wins Tuesday webinar nerves.

Indian fit (GST, UPI, IST, support)

GST: both issue compliant-ish paths — Brevo India entity vs Mailchimp via Intuit India — neither replaces your CA on reverse-charge edge cases when you’re importing agency services.

INR billing: absent — you’re paying [USD], swallowing FX — UPI checkout absent — ironic given domestic rails obsession post-UPI Lite pilots.

IST overlap: Brevo email/chat stretches into overlapping IST hours per their positioning (Paris HQ means morning IST gaps still bite urgent outages). Mailchimp advertises 24×7 chat on paid tiers — useful when deployment breaks during IPL final traffic spike — free tiers get slower queues anyway.

Foreigner truth: you’re always reconciling abroad invoices against Form GSTR-3B headaches — tokenisation drama on saved cards means occasional re-auth friction — neither vendor solves India’s payroll quirks.

Migration: what’ll bite you

Brevo → Mailchimp: audience field mapping breaks — custom merge tags don’t port one-click — rebuild segments — Shopify deep integration differs — Zapier glue redo — webhook endpoints rotate — warm IP/domain reputation isn’t transferable — budget 2–4 week ramp plus sunset parallel sends — transactional SMTP credentials swap everywhere.

Mailchimp → Brevo: export unsubscribed vs non-consented rows carefully — Mailchimp historically counted zombies against tier — cleaning lists before import saves psychic damage — automation logic rebuilt node-by-node — CRM pipeline on Brevo side empty unless you migrate deals manually — transactional templates require HTML rewrite — DNS DKIM keys updated — finance notices duplicate GST registration paperwork briefly.

Contracts: annual prepay locks cash — break clauses painful — factor legal hours nobody invoices back.

What we’d pick

We’re running Brevo if sends dwarf vanity contact hoarding and Shopify receipts matter — Mailchimp if templates plus freelancer ecosystem outweigh ₹18–25k/year variance at our scale — what’s your dormant-contact percentage anyway — still lying to yourself it’s “good for reactivation someday”?

Things people actually ask

“Bro is Brevo actually cheaper if we’re doing ₹2 cr/yr GMV?” Depends on list bloat versus sends — high GMV with lean engaged audience keeps Brevo cheaper — fat CRM cemetery inflates Mailchimp — model three scenarios in Sheets — don’t trust vendor calculators before chai.

“Mailchimp Essentials vs Brevo Starter — who nukes first at Diwali volume?” Daily caps on lower Brevo tiers sting burst sends — Mailchimp punishes stored contacts — spike sends → watch Brevo ceiling — spike dormant profiles → Mailchimp invoice jumps — pick poison matching your sin pattern.

“Do I redo GST invoice template switching vendors?” Yes-ish — treat migration month as reconciliation nightmare — align ITC line items — ask CA before migrating mid-quarter — not vendor support territory.

“Transactional email via Mailchimp — yay?” Possible — feels awkward at volume — Mandrill history merged awkwardly — many Indian SaaS still split Mandrill/Brevo SES versus all-in-one — evaluate SMTP latency — deliverability anecdotal — test seed inboxes across Gmail/Yahoo India clusters.

“Is Mailchimp creator-friendly?” Meh — creators swear Beehiiv/ConvertKit — we asked four founders — three laughed — one tolerates Mailchimp templates — niche newsletters ≠ strengths here.

“WhatsApp campaigns inside Brevo — RBI headache?” Meta commerce rules outside Breo’s control — template approvals via BSP partners still manual — tokenisation irrelevant — compliance sits between you and WhatsApp Business Policy — budget ops time — pricing additive [USD].

“Free tier — which dies first?” Mailchimp narrowed generous perks historically — Brevo daily 300 caps experimentation — both punish scale quietly — read changelog quarterly — vendors deprecate quietly — annoying pattern industry-wide.

“Support when Razorpay webhook fails Friday night?” Neither guarantees IST hero — paid Mailchimp chat edges probability — Brevo Starter support anecdotes mixed — escalate via Twitter DM roulette — keep logs — blame gateway last — usually true.

“Switch mid-GST year — insane?” Annoying — not insane — parallel-send overlap safest — declare downtime window — warn finance — closing books hates surprises — same as swapping payment gateways post-RBI recurring tweaks — painful — doable — worth measuring morale cost — who’s answering angry merchants Monday morning — still you?