Customer.io vs Mailjet
Compare Customer.io and Mailjet on features, pricing, and buyer fit using the same researched criteria.
Customer.io
Product-led event-driven messaging across email, push, SMS, and in-app — MAP-adjacent to classic ESPs.
Best for
- • Product-led teams sending event-driven multi-channel messages
- • SaaS/apps needing behavioral onboarding and lifecycle messaging
- • Teams comparing Braze-class engagement with a mid-market entry
Starting from $100.00/user/mo
No free plan
VS
Our verdict
There is no universal winner between Customer.io and Mailjet. Choose Customer.io when Product-led teams sending event-driven multi-channel messages. Choose Mailjet when EU/SMB teams needing marketing + transactional email in one vendor. Criterion scores come from approved SoftwareGlimpse editorial assessments and first-party research — not hands-on lab testing.
Customer.io is better for
- ✓ Automation
- ✓ Segmentation
- ✓ Analytics
- ✓ Integrations
Mailjet is better for
- ✓ Landing pages
Tie
- • Templates
Choose Customer.io if: Product-led teams sending event-driven multi-channel messages
Choose Mailjet if: EU/SMB teams needing marketing + transactional email in one vendor
Mailjet
EU-friendly email platform for marketing and transactional sending with send-volume pricing (Sinch).
Best for
- • EU/SMB teams needing marketing + transactional email in one vendor
- • Developers wanting API/SMTP alongside campaigns
- • Buyers comparing send-volume pricing vs contact-tier ESPs
Starting from $9.00/user/mo
Free plan available
Customer.io vs Mailjet pricing
Customer.io researched starting price from $100/mo. Mailjet researched starting price from $9/mo; a free plan is researched. Affiliate economics excluded.
Customer.io
From $100.00/user/mo
Mailjet
From $9.00/user/mo
Customer.io
Starting from $100.00/user/mo
Free trial available
- EssentialsPopular$100.00/mo
- From $100/mo — 5,000 profiles / 1M emails/mo (research).
- included profiles entry: 5000
- included emails monthly: 1000000
- Premium$1,000.00/mo
- From $1,000/mo — elevated limits and premium integrations (research).
- EnterpriseCustom
- Custom infrastructure, compliance, and support.
Mailjet
Starting from $9.00/user/mo
No free trial evidenced
- Free$0.00/user/mo
- Free: 6,000 emails/mo, 200/day, 1,000 contacts.
- max email sends monthly: 6000
- max email sends daily: 200
- max contacts: 1000
- Starter$9.00/mo
- From $9/mo at researched 8,000 emails/mo band.
- included emails monthly entry: 8000
- EssentialPopular$17.00/mo
- From $17/mo — segmentation, AI assist, unlimited contacts (research).
- included emails monthly entry: 15000
- Premium$27.00/mo
- From $27/mo — automations, landing pages, advanced stats (research).
- included emails monthly entry: 15000
- CustomCustom
- Enterprise custom for high-volume senders.
Estimate your team cost
Monthly estimate from verified per-seat list pricing. Confirm on the vendor site before purchasing.
Customer.io
$1,500.00/mo
Mailjet
$135.00/mo
+$1,365.00/mo — Customer.io costs more
Verified monthly unit prices · Aug 17, 2026
Prices in USD
Shown per user / month from verified list pricing.
Plans can change
Confirm live vendor rates before purchasing.
Add-ons may apply
Calling, SMS, or usage fees can add cost.
Independence
Affiliate status never changes pricing outcomes.
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