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Act! vs Auth0: 2026 Comparison

Act! Auth0
Overview A long-standing CRM and marketing automation platform trusted by small and midsize businesses for over 35 years. A flexible authentication and authorization platform for building secure login experiences with social, passwordless, and MFA support.
Pricing Subscription ($30-$50/user/month) Freemium (Free-$23/1K MAU)
Key Features
  • Contact management
  • Opportunity tracking
  • Marketing automation
  • Custom dashboards
  • Mobile access
  • Integration
  • emarketing
  • Calendar management
  • Universal Login
  • Social connections
  • MFA
  • Passwordless
  • SSO
  • RBAC
  • Breached password detection
  • Extensibility
Pros
  • Long track record
  • On-premise option
  • Good for small businesses
  • Established user base
  • Comprehensive auth solution
  • Many social providers
  • Good documentation
  • Flexible rules
Cons
  • Interface feels dated
  • Limited modern integrations
  • Marketing features are basic
  • Mobile app is limited
  • Expensive at scale
  • Complex pricing
  • Can be overkill
  • Okta acquisition concerns