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Auth0 vs Cal.com: 2026 Comparison

Auth0 Cal.com
Overview A flexible authentication and authorization platform for building secure login experiences with social, passwordless, and MFA support. Open-source scheduling infrastructure for everyone with customizable booking pages and team scheduling.
Pricing Freemium (Free-$23/1K MAU) Freemium ($0-15/mo)
Key Features
  • Universal Login
  • Social connections
  • MFA
  • Passwordless
  • SSO
  • RBAC
  • Breached password detection
  • Extensibility
  • Open-source
  • Scheduling
  • Team bookings
  • Routing
  • Workflows
  • API
  • Self-hosted
  • Integrations
Pros
  • Comprehensive auth solution
  • Many social providers
  • Good documentation
  • Flexible rules
  • Open-source
  • Self-hosted option
  • Free tier
  • Customizable
Cons
  • Expensive at scale
  • Complex pricing
  • Can be overkill
  • Okta acquisition concerns
  • Newer platform
  • Fewer features than Calendly
  • Setup complexity