G2 Vendor Directory

Mailjet vs. Klaviyo

A side-by-side comparison based on G2 review data.

MetricMailjet

by Sinch

Klaviyo

by Klaviyo

Overall rating3.94.6
Review count1751,370
Ease of use8.78.8
Ease of setup8.38.7
Quality of support7.88.6
Meets requirements8.59.2
NPS41.71428672.69289
Small Business74.4%81.9%
Mid-Market17.7%16.4%
Enterprise7.9%1.6%
Total page views9225,118
Total LLM citations12,26148,942

Mailjet

With GDPR-compliant infrastructure and proven deliverability, Mailjet is the best Email Marketing Software & Email API for Teams. Marketers design, deliver, and automate email newsletters and automations, while developers power high-volume transactional email via robust APIs and SMTP relay. Collaborative editing, templates, and approval flows keep teams fast and consistent; advanced segmentation, A/B testing, and analytics drive growth with every send. Built in Europe with privacy-first hosting options, Mailjet helps you reach the inbox at scale without compromising compliance.

Pros

  • Ease of Use
  • Automation AI
  • Easy Creation
  • Customer Support
  • Affordable
  • Email Marketing

Klaviyo

Klaviyo is the all-in-one platform that helps B2C businesses grow by integrating marketing, analytics, and customer service in one solution. Powered by unified data and built-in AI , Klaviyo empowers B2C businesses: - Orchestrate your email marketing, SMS marketing, RCS, push, WhatsApp, reviews, forms, and ads in one platform - Sync with 400+ tools to capture and unify behavior data - AI-optimized messages, segments, timing, and creative to scale conversions - Unlock analytics like RFM, funnel reporting, and catalog insights By capturing every click, purchase, and conversation into a

Pros

  • Ease of Use
  • Email Marketing
  • Automation
  • Easy Integration
  • Integrations
  • Easy Creation