Customer.io vs Mailjet
A detailed comparison to help you choose the right tool for your needs.
AAbout Customer.io
Customer.io is an automated messaging platform that lets companies send targeted communications based on real-time user behavior and event data. It supports email, push notifications, SMS, and in-app messages, all orchestrated through a visual workflow builder. The platform is particularly popular with product-led SaaS companies and tech startups that need granular control over their messaging logic. What sets it apart is its developer-friendly approach — it works with event-driven data rather than static lists, making it highly flexible for teams that want to trigger messages based on exactly what users do in their product.
BAbout Mailjet
Mailjet is an email service provider that combines transactional and marketing email capabilities into a single platform. It serves both marketers who need to create and send campaigns and developers who require reliable email delivery via API. Its real-time collaboration feature for email design sets it apart, allowing teams to work on templates simultaneously, similar to Google Docs. Owned by Sinch (formerly Mailgun), it's a solid choice for businesses that need both bulk marketing emails and transactional messages like receipts and password resets without juggling multiple tools.
Pricing Comparison
Feature Comparison
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Mailjet is an email marketing tool that helps businesses create, send, and track email campaigns.
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Score Comparison
Our Verdict
Your product-led team requires an event-driven messaging platform for growth.
Your business prioritizes affordable email campaigns starting at $15/mo with tracking features.
Customer.io vs Mailjet: The Bottom Line
Both Customer.io and Mailjet are strong marketing tools, but they serve different needs. Customer.io has a higher user rating (4.1 vs 3.9).
Still unsure? Check the full reviews for Customer.io and Mailjet, explore Customer.io alternatives, or use our AI search to describe exactly what you need.
Frequently Asked Questions
Is Customer.io or Mailjet better?
It depends on your needs. Customer.io (4.1★) is from $null/mo, while Mailjet (3.9★) is free to start. Customer.io has a higher user rating.
Can I switch from Customer.io to Mailjet?
Yes. Most SaaS tools offer data export features. Check if Mailjet has a migration guide or import tool specifically for Customer.io users. Many offer onboarding assistance for switchers.
Which is cheaper, Customer.io or Mailjet?
Check the pricing pages of both Customer.io and Mailjet for the most up-to-date pricing information.
What are the main differences between Customer.io and Mailjet?
Customer.io focuses on event-driven campaigns and visual workflow builder, while Mailjet emphasizes drag-and-drop email builder and real-time email performance tracking. Both are in the Marketing category but serve slightly different use cases.