Brevo vs Customer.io: Email Marketing Comparison (2026)

An independent side-by-side comparison of Brevo and Customer.io for email marketing buyers — pricing, features, integrations, and how often each is cited by major AI engines.

AI Citation Scorecard

How often each is cited by major AI engines when buyers ask email marketing questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.

Too early to call — probes still building data.
ChatGPT
Brevo
43 / 56 probes
77%
Excellent
Customer.io
Tracking…
No data yet
Perplexity
BrevoLeads
34 / 56 probes
61%
Excellent
Customer.io
0 / 1 probes
0%
Invisible
Gemini
Brevo
40 / 56 probes
71%
Excellent
Customer.io
Tracking…
No data yet
Claude
BrevoLeads
515 / 592 probes
87%
Excellent
Customer.io
0 / 1 probes
0%
Invisible
Copilot
BrevoLeads
232 / 237 probes
98%
Excellent
Customer.io
0 / 1 probes
0%
Invisible
Scale:NoneLowFairStrongExcellent

Probes run hourly; each (engine × query) combo retests every ~3 days.

Pricing

Brevo
Starting price
$8.08/month
Free tier
Yes
brevo.com
Customer.io
Starting price
Free tier
customer.io

Key Features

Brevo
  • 5,000 emails/month
  • Drag & Drop email editor
  • Email templates
  • AI content generator
  • Advanced segmentation
  • Forms for lead capture
  • Basic reporting & analytics
  • Email support
Customer.io

Feature data is being indexed.

When to choose Brevo

Choose Brevo if your team prioritizes its strengths over Customer.io's. Full guidance populates as Brevo's feature data is indexed.

When to choose Customer.io

Choose Customer.io if your team prioritizes its strengths over Brevo's. Full guidance populates as Customer.io's feature data is indexed.

AI visibility profiles

Is one of these your brand?

Get the full report by email: every email marketing buyer question we ask, which engines name you, and who gets named instead.

Brevo

brevo.com

Customer.io

customer.io

Free check

Check any brand's AI visibility — free

We ask the buyer questions in this market across ChatGPT, Claude, Gemini, Perplexity and Copilot, and show you who gets named.

More Email Marketing Comparisons