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Affinity vs Resend: 2026 Comparison

Affinity Resend
Overview A relationship intelligence CRM designed for dealmakers in private capital, investment banking, and consulting. A modern email API for developers built on top of React Email with a focus on developer experience and deliverability.
Pricing Subscription (Custom pricing) Freemium (Free-$19.50/month)
Key Features
  • Relationship intelligence
  • Automatic data capture
  • Deal management
  • Analytics
  • Email integration
  • Chrome extension
  • Alliances
  • Pipeline management
  • Email API
  • React Email
  • SMTP
  • Webhooks
  • Analytics
  • Custom domains
  • Dedicated IPs
  • Team management
Pros
  • Excellent relationship mapping
  • Automatic activity capture
  • Great for deal-driven firms
  • Strong analytics
  • Beautiful developer experience
  • React Email integration
  • Modern API
  • Generous free tier
Cons
  • Expensive
  • Niche use case
  • Limited marketing features
  • Not for general business use
  • Newer platform
  • Fewer features than SendGrid
  • Limited templates
  • Smaller community