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Airbase vs Fat Free CRM: 2026 Comparison

Airbase Fat Free CRM
Overview A comprehensive spend management platform combining corporate cards, bill pay, expense reimbursements, and procurement. A lightweight open-source Ruby on Rails CRM application designed for small teams who want a simple self-hosted solution.
Pricing Subscription (Custom pricing) Freemium (Free (open source))
Key Features
  • Corporate cards
  • Bill pay
  • Expense management
  • Procurement
  • Virtual cards
  • Approval workflows
  • Accounting automation
  • Analytics
  • Contact management
  • Lead tracking
  • Opportunity management
  • Campaign tracking
  • Task management
  • User management
  • Custom fields
  • Tagging
Pros
  • Comprehensive spend management
  • Good approval workflows
  • Strong accounting sync
  • Virtual cards
  • Free and lightweight
  • Simple to use
  • Ruby on Rails based
  • Clean interface
Cons
  • Expensive
  • Complex setup
  • Enterprise-focused
  • Custom pricing only
  • No longer actively maintained
  • Very basic features
  • Small community
  • Limited integrations

Airbase

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Fat Free CRM

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