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Auth0 vs Smile.io: 2026 Comparison

Auth0 Smile.io
Overview A flexible authentication and authorization platform for building secure login experiences with social, passwordless, and MFA support. A loyalty and rewards platform for e-commerce brands offering points, referrals, and VIP programs.
Pricing Freemium (Free-$23/1K MAU) Freemium (Free-$999/month)
Key Features
  • Universal Login
  • Social connections
  • MFA
  • Passwordless
  • SSO
  • RBAC
  • Breached password detection
  • Extensibility
  • Points program
  • Referral program
  • VIP tiers
  • Customizable launcher
  • Nudges
  • Shopify POS integration
  • Analytics
  • Email integration
Pros
  • Comprehensive auth solution
  • Many social providers
  • Good documentation
  • Flexible rules
  • Easy to set up
  • Generous free plan
  • Multi-platform support
  • Customizable rewards
Cons
  • Expensive at scale
  • Complex pricing
  • Can be overkill
  • Okta acquisition concerns
  • Advanced features locked to higher tiers
  • Can slow down store
  • Limited free plan analytics
  • Design customization limited on lower plans