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Auth0 vs Sailthru: 2026 Comparison

Auth0 Sailthru
Overview A flexible authentication and authorization platform for building secure login experiences with social, passwordless, and MFA support. Marigold-owned personalization and marketing automation platform for retail and media with predictive intelligence.
Pricing Freemium (Free-$23/1K MAU) Subscription (Custom)
Key Features
  • Universal Login
  • Social connections
  • MFA
  • Passwordless
  • SSO
  • RBAC
  • Breached password detection
  • Extensibility
  • Email marketing
  • Personalization
  • Predictive intelligence
  • Mobile push
  • SMS
  • Lifecycle optimization
Pros
  • Comprehensive auth solution
  • Many social providers
  • Good documentation
  • Flexible rules
  • Retail focus
  • Predictive analytics
  • Cross-channel
  • Personalization engine
Cons
  • Expensive at scale
  • Complex pricing
  • Can be overkill
  • Okta acquisition concerns
  • Enterprise pricing
  • Complex setup
  • Retail focused