Duo Security vs FusionAuth: Identity & Access Management Comparison (2026)
Duo Security and FusionAuth both offer Identity and Access Management solutions with free tiers, but they differ in their pricing models, specific features, and support structures.
AI Citation Scorecard
How often each is cited by major AI engines when buyers ask identity & access management questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
- ✓Strong MFA
- ✓Seamless integrations
- ✓Single sign-on
- ✓Unlimited applications
- ✓Risk-Based Authentication
- ✓Complete passwordless authentication
- ✓Session theft protection
- ✓Trusted Endpoints
- ✓Core authentication features
- ✓Community support
- ✓Premium authentication features
- ✓Custom OAuth scopes
- ✓Advanced connectivity, MFA
- ✓Email support
- ✓Advanced threat detection
- ✓24/7 support
When to choose Duo Security
Duo Security is suitable for organizations prioritizing ease of setup, affordable per-user pricing, and a comprehensive set of security features including Risk-Based Authentication and complete passwordless authentication. Its seamless integrations and unlimited applications make it a strong choice for businesses looking for scalable MFA and SSO solutions, especially if they value features like Session theft protection and Trusted Endpoints.
When to choose FusionAuth
FusionAuth is a strong option for organizations that require flexible hosting options, including self-hosting with community support, and for developers who need core authentication features with the ability to customize OAuth scopes. It caters to businesses looking for advanced connectivity, MFA, and threat detection, with higher tiers offering email and 24/7 support.