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Affinity vs Windmill: 2026 Comparison

Affinity Windmill
Overview A relationship intelligence CRM designed for dealmakers in private capital, investment banking, and consulting. An open-source developer platform for building internal tools, workflows, and scripts with a focus on developer experience.
Pricing Subscription (Custom pricing) Freemium (Free-$40/user/month)
Key Features
  • Relationship intelligence
  • Automatic data capture
  • Deal management
  • Analytics
  • Email integration
  • Chrome extension
  • Alliances
  • Pipeline management
  • Script editor
  • Workflow builder
  • App builder
  • Scheduling
  • Webhooks
  • Self-hosted
  • Multi-language
  • Version control
Pros
  • Excellent relationship mapping
  • Automatic activity capture
  • Great for deal-driven firms
  • Strong analytics
  • Open source
  • Developer-first
  • Self-hosted option
  • Multi-language support
Cons
  • Expensive
  • Niche use case
  • Limited marketing features
  • Not for general business use
  • Newer platform
  • Smaller community
  • Documentation growing
  • Limited UI components