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
Feature comparison
Grouped feature support from verified product research for Customer.io and Mailjet.
Campaigns
| Feature | Customer.io | Mailjet | Winner |
|---|---|---|---|
| Email campaigns | Strong | Strong | Tie |
| Newsletter builder | Moderate | Strong | Mailjet |
| Email templates | Strong | Strong | Tie |
| Drag-and-drop editor | Strong | Strong | Tie |
| Landing pages | Limited | Strong | Mailjet |
| Forms | Moderate | Strong | Mailjet |
Automation & targeting
| Feature | Customer.io | Mailjet | Winner |
|---|---|---|---|
| Automation workflows | Strong | Strong | Tie |
| Segmentation | Strong | Strong | Tie |
| Personalization | Strong | Strong | Tie |
| A/B testing | Strong | Strong | Tie |
| Transactional email | Strong | Strong | Tie |
Platform
| Feature | Customer.io | Mailjet | Winner |
|---|---|---|---|
| Analytics | Strong | Strong | Tie |
| Deliverability tools | Strong | Strong | Tie |
| AI content generation | Strong | Strong | Tie |
Additional capabilities
| Feature | Customer.io | Mailjet | Winner |
|---|---|---|---|
| Contact management | Strong | Strong | Tie |
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