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Keap vs Mailjet

Keap is a all-in-one marketing platform while Mailjet is a email marketing platform. Keap has been around since 2001, giving it a 9-year head start over Mailjet (founded 2010). Keap starts at $299/mo, while Mailjet starts at $9/mo. Their pricing is not measured the same way, so we don't rank them on price. Mailjet offers a free plan (6,000 emails/month (200/day), 1,000 contacts), while Keap does not. Keap has the edge with ecommerce integrations.

Quick Verdict

Keap wins on deliverability, rating, integrations.

Mailjet wins on free tier.

Best for most users: Keap (sales driven small businesses).

Keap

CRM-powered sales and marketing automation for small businesses

4.2/5 From $299/mo

Keap (formerly Infusionsoft, founded 2001, acquired by Thryv in 2024) is a premium all-in-one CRM and marketing automation platform built for sales-driven small businesses that need contact management, email sequences, SMS marketing, invoicing, and appointment scheduling in a single tool. Its strength lies in powerful automation workflows and a dedicated Customer Success Manager, but the $299/month starting price for just 1,500 contacts makes it one of the most expensive options in its category.

Mailjet

Collaborative email platform for teams with powerful API

4/5 Free plan · from $9/mo

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 Keap Mailjet
Rating 4.2/5 4/5
Starting Price $299/mo $9/mo
Free Plan No free plan 6,000 emails/month (200/day), 1,000 contacts
Founded 2001 2010
Email Templates 70 70
Integrations 5,000 110
Deliverability Rate 93% 88%
Marketing Automation Yes Yes
A/B Testing Yes Yes
Landing Pages Yes Yes
Segmentation Yes Yes
Drag & Drop Editor Yes Yes
SMS Marketing Yes Yes
Ecommerce Features Yes No
API Access Yes Yes
Multi-Language No Yes
Web Push Notifications No No
Live Chat Yes No
Advanced Analytics Yes Yes

Keap: Pros & Cons

Pros

  • + Powerful drag-and-drop automation builder that handles complex multi-step sales workflows with conditional triggers
  • + True all-in-one platform combining CRM, email, SMS, invoicing, payments, and appointment scheduling
  • + Dedicated Customer Success Manager included with every plan for hands-on onboarding and support
  • + Deep contact management with tagging, segmentation, and centralized views that reduce manual data entry
  • + Built-in text marketing with tiered messaging plans and voice minutes integrated directly into automations

Cons

  • − Extremely expensive at $299/month for only 1,500 contacts, with costs escalating quickly for additional contacts and users
  • − Steep learning curve with complex campaign builder layouts and no undo button, causing frustration during setup
  • − Email marketing capabilities feel half-baked compared to dedicated email platforms despite the premium pricing
  • − Invoicing feature is rigid and does not support hourly billing or flexible customization
  • − Dated mobile experience and slow feature development compared to more agile competitors like GoHighLevel

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

Keap edges ahead with a 4.2/5 rating compared to Mailjet's 4/5. The gap comes mainly from support (4.6 vs 3.9) and deliverability (3.9 vs 3.5). On deliverability, Keap reports 93% compared to 88% for Mailjet — a meaningful difference if inbox placement is critical for your campaigns.

Criterion Weight Keap Mailjet
Starting Price 30% $299/mo $9/mo
Deliverability 25% 93% Winner 88%
Rating 25% 4.2/5 Winner 4/5
Integrations 10% 5000 Winner 110
Free Tier 10% No Yes Winner

Weights determine how much each criterion counts toward the final score. See full methodology

Choose Keap if…

  • + You need ecommerce integrations
  • + You're a sales driven small businesses
  • + You're a service based businesses

Choose Mailjet if…

  • + You need a free plan to get started
  • + You're a marketing teams needing real time email collaboration
  • + You're a european businesses requiring gdpr compliant email