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
Evidence & transparency
Sources and research process behind this comparison.
Sources
4
Criteria
10
Screenshots
0
Sources consulted
| Title | Product | Type |
|---|---|---|
| Customer.io — Official Site | Customer.io | official-product-page |
| Customer.io Pricing | Customer.io | official-pricing-page |
| Mailjet — Official Site | Mailjet | official-product-page |
| Mailjet Pricing | Mailjet | official-pricing-page |
Methodology steps
- 1Collect first-party product and pricing evidence
- 2Map both products to the same category criteria
- 3Record criterion outcomes with confidence and sources
- 4Publish only when editorial gates allow indexing
Methodology version 1.0.0.
Affiliate relationships never change comparison outcomes. We evaluate both products on the same criteria and allow ties when evidence does not support a universal winner.
Read full methodology →Some visit links may be affiliate links — we may earn a commission at no extra cost to you. Comparison outcomes are never based on commission.