Brevo vs Klaviyo
Side-by-side total cost of ownership: subscription fees, labor, hidden costs, and AI alternatives.
Published pricing
The subscription is only part of the cost.
| Brevo | Klaviyo | |
|---|---|---|
| Published rate | $18/seat/mo | $20/mo |
| Team size modeled | 5 | 5 |
| Annual subscription | $1,080/yr | $1,200/yr |
What the invoice doesn't show
Brevo
Brevo's free plan sends only 300 emails per day with Brevo branding on every email. The Starter plan ($9/mo for 5,000 emails) still includes Brevo branding — removing it costs an additional $9/month. You pay twice to look professional.
SMS and WhatsApp credits are purchased separately from email plans. SMS costs $0.014-0.06 per message depending on country. A campaign to 10,000 US contacts costs $140 in SMS credits alone — not included in any email plan.
The Business plan ($18/mo) is required for marketing automation, A/B testing, send-time optimization, and advanced stats. As of October 2025, landing page builder was also moved to Business — a feature previously available at the Starter tier now requires upgrading.
Brevo's CRM is functional but basic. Users report that deal pipeline management, contact scoring, and reporting lack the depth of dedicated CRMs, creating pressure to add a separate CRM tool and manage data across systems.
Klaviyo
Active-profile billing punishes growth: 5K to 10K subscribers raises your bill 50%+ ($100 to $150/mo). As of February 2025, Klaviyo bills on 'active profiles' — explicitly suppressed and unsubscribed contacts do not count, but non-opted-in checkout contacts (people who gave their email without explicitly subscribing) do count. One agency client was paying for 20-30K profiles who had never opted in — $5,400/year wasted on contacts they could not legally market to.
SMS credits have hidden multipliers: add a single emoji and encoding changes make messages cost 2 credits instead of 1. MMS (images) = 3 credits. International SMS to UK = 5 credits. One client burned her entire monthly SMS budget in a single campaign because of emoji usage.
Klaviyo automatically upgrades your billing tier when contacts exceed a threshold but does not automatically downgrade when your list shrinks. No annual billing discount available — unusual for SaaS.
If monthly spend exceeds $10,000, brands are automatically enrolled in Klaviyo One with a mandatory 20% surcharge — $24,000/year extra added without opt-in. Professional support requires $5,000+/mo spend; below that, expect days-long ticket response times.
What teams are switching to
Replacing Brevo
MailerLite
Free (1K subs), $10/mo (Growing), $20/mo (Advanced)
AI writing assistant, smart sending, and full automation included at $10/mo. No branding removal fees. 1,000 subscribers and 12,000 emails free. Cleaner interface with faster email builder.
Loops
Free (1K contacts), from $49/mo
AI-native email platform built for SaaS. Automated user segmentation based on product events. Clean API-first architecture that replaces Brevo's transactional + marketing split with a unified approach.
Resend
Free (100 emails/day), $20/mo (50K emails)
Developer-first email API with React Email for templating. Replaces Brevo's transactional email product with modern DX. Better deliverability and simpler pricing without cross-selling marketing tools.
Replacing Klaviyo
Brevo
Free (300 emails/day, unlimited contacts), from $29/mo
Pay per email sent, not per contact — fundamentally different cost structure. At 10K contacts, Brevo costs $29/mo vs Klaviyo's $150/mo (81% cheaper). AI content generator and per-contact send-time optimization included.
Omnisend
From $16/mo, Pro $59/mo+
At 25K contacts: $282/mo vs Klaviyo's $400/mo (30% cheaper). SMS credits included in Pro plan. 250+ templates. Users report $68 return per dollar spent.
Sender
From $10/mo
At 10K contacts: $40/mo vs Klaviyo's $150/mo (73% cheaper). Described as '79% cheaper than Klaviyo' overall. 24/7 human support included at all tiers.
StackCut doesn't sell or recommend any of these tools. We show them for context. The decision is yours.
Total Cost of Ownership
Subscription fees plus labor and error costs, modeled at $50/hr loaded rate (BLS ECEC).
| Cost Component | Brevo | Klaviyo |
|---|---|---|
| Annual subscription | $1,080 | $1,200 |
| Labor cost | $9,000 | $9,000 |
| Error & rework cost | $1,200 | $1,200 |
| Total Cost of Ownership | $11,280/yr | $11,400/yr |
| Est. AI alternative | $5,088/yr | $5,088/yr |
Labor rate based on BLS ECEC June 2025 ($45.65/hr private industry total compensation, rounded to $50). Team sizes differ because each vendor targets different market segments. Your actual numbers depend on team size, role mix, and usage. Run it with your own data.
Which one fits your team?
Both Brevo and Klaviyocost more than their published pricing suggests. The right choice depends on your team size and how you weigh each tool's trade-offs.
Brevo starts at $18/seat/mo , but watch for Brevo's free plan sends only 300 emails per day with Brevo branding on every email. The Starter plan ($9/mo for 5,000 emails) still includes Brevo branding — removing it costs an additional $9/month. You pay twice to look professional.
Klaviyo starts at $20/mo , but watch for Active-profile billing punishes growth: 5K to 10K subscribers raises your bill 50%+ ($100 to $150/mo). As of February 2025, Klaviyo bills on 'active profiles' — explicitly suppressed and unsubscribed contacts do not count, but non-opted-in checkout contacts (people who gave their email without explicitly subscribing) do count. One agency client was paying for 20-30K profiles who had never opted in — $5,400/year wasted on contacts they could not legally market to.
An AI-native alternative may replace the workflow at a fraction of the TCO.
Find out what your email marketing stack really costs
Upload your QuickBooks export. Get a defensible savings report in under 10 minutes. No signup required.