Klaviyo vs Mailjet
Klaviyo and Mailjet are both popular choices in the email marketing platform space. Mailjet is the more affordable option at $17/mo — that's $3 less per month than Klaviyo's $20/mo entry point. Both offer free plans to get started. Klaviyo has the edge with landing pages, ecommerce integrations.
Quick Verdict
Klaviyo wins on deliverability, rating, integrations.
Mailjet wins on price.
Best for most users: Klaviyo (ecommerce).
Klaviyo
The platform for unified customer data
Klaviyo is the gold standard for ecommerce email and SMS marketing, particularly for Shopify stores. Its deep integration with ecommerce platforms enables sophisticated automated flows like abandoned cart, post-purchase, and win-back sequences based on real purchase data.
Mailjet
Collaborative email platform for teams with powerful API
Mailjet is a French-founded email platform (now owned by Sinch) that uniquely combines transactional and marketing email under one roof with real-time team collaboration. Its volume-based pricing with unlimited contacts makes it particularly cost-effective for businesses with large subscriber lists but moderate sending frequency. With strong GDPR compliance baked into its European DNA and a flexible API, it bridges the gap between developer-focused tools and marketer-friendly platforms.
Feature Comparison
| Feature | Klaviyo | Mailjet |
|---|---|---|
| Rating | 4.6/5 | 4/5 |
| Starting Price | $20/mo | $17/mo |
| Free Plan | 250 subscribers | 6,000 emails/month (200/day), unlimited contacts |
| Founded | 2012 | 2010 |
| Email Templates | 100 | 70 |
| Integrations | 350 | 110 |
| Deliverability Rate | 99% | 88% |
| Marketing Automation | ✓ | ✓ |
| A/B Testing | ✓ | ✓ |
| Landing Pages | ✓ | ✕ |
| Segmentation | ✓ | ✓ |
| Drag & Drop Editor | ✓ | ✓ |
| SMS Marketing | ✓ | ✓ |
| Ecommerce Features | ✓ | ✕ |
| API Access | ✓ | ✓ |
| Multi-Language | ✓ | ✓ |
| Web Push Notifications | ✕ | ✕ |
| Live Chat | ✕ | ✕ |
| Advanced Analytics | ✓ | ✓ |
Klaviyo: Pros & Cons
Pros
- +Best-in-class ecommerce integrations (Shopify, WooCommerce)
- +Powerful segmentation with predictive analytics
- +Excellent deliverability (99%+)
- +Revenue attribution for every email and SMS
- +Deep customer data platform capabilities
Cons
- −Expensive for large lists
- −Steep learning curve
- −Free plan very limited (250 contacts)
- −SMS credits sold separately
- −Can be overkill for non-ecommerce businesses
Mailjet: Pros & Cons
Pros
- +Real-time collaborative email editing lets multiple team members work on the same campaign simultaneously with live comments
- +Volume-based pricing with unlimited contacts means large lists stay affordable — one user grew from 0 to 50,000 subscribers affordably
- +Strong GDPR compliance built into the platform with EU data hosting, as a French-founded company under European regulations
- +RESTful API with SMTP relay supports both transactional and marketing email from a single platform
- +Deliverability rated 88% by EmailToolTester (above 83.1% industry average) with built-in list validation powered by Mailgun
Cons
- −Automation builder covers basics but lacks depth — triggers based on opens/clicks are tricky to configure and abandoned cart requires Zapier
- −No built-in landing page builder, forcing users to rely on third-party tools for lead capture
- −Many of the 110 integrations route through Zapier rather than being native direct connections
- −Migration from other ESPs is largely manual with limited import assistance for contacts, templates, and automations
- −Customer support response times are frequently criticized, with some serious technical issues going unresolved for extended periods
The Verdict
Klaviyo edges ahead with a 4.6/5 rating compared to Mailjet's 4/5. The gap comes mainly from deliverability (4.7 vs 3.5) and ease of use (4.6 vs 4.2). On deliverability, Klaviyo reports 99% compared to 88% for Mailjet — a meaningful difference if inbox placement is critical for your campaigns.
| Criterion | Weight | Klaviyo | Mailjet |
|---|---|---|---|
| Starting Price | 30% | $20/mo | $17/mo |
| Deliverability | 25% | 99% | 88% |
| Rating | 25% | 4.6/5 | 4/5 |
| Integrations | 10% | 350 | 110 |
| Free Tier | 10% | Yes | Yes |
Weights determine how much each criterion counts toward the final score. See full methodology
Choose Klaviyo if…
- + You need ecommerce integrations
- + You need built-in landing pages
- + You're a ecommerce
- + You're a shopify
Choose Mailjet if…
- + You want lower starting costs ($17/mo)
- + You're a marketing teams needing real time email collaboration
- + You're a european businesses requiring gdpr compliant email