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Airbase vs Substack: 2026 Comparison

Airbase Substack
Overview A comprehensive spend management platform combining corporate cards, bill pay, expense reimbursements, and procurement. Publishing platform enabling writers to create paid newsletter subscriptions with built-in payment processing.
Pricing Subscription (Custom pricing) Freemium (10% of revenue)
Key Features
  • Corporate cards
  • Bill pay
  • Expense management
  • Procurement
  • Virtual cards
  • Approval workflows
  • Accounting automation
  • Analytics
  • Newsletter publishing
  • Paid subscriptions
  • Podcasts
  • Notes
  • Chat
  • Mobile app
  • Recommendations
Pros
  • Comprehensive spend management
  • Good approval workflows
  • Strong accounting sync
  • Virtual cards
  • Simple to use
  • Built-in payments
  • Growing network
  • Free to start
Cons
  • Expensive
  • Complex setup
  • Enterprise-focused
  • Custom pricing only
  • 10% revenue cut
  • Limited customization
  • Basic analytics