Auth0 vs Duo Security Pricing (2026)
How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.
| Auth0 pricing | Duo Security pricing | |
|---|---|---|
| Starts at | $35/mo | $3/mo |
| Number of plans | 4 | 4 |
| Free plan | ||
| Free trial | — | |
| Pricing model | hybrid | per-seat |
Price is one row. To weigh the features too, use our feature comparison template →
Free
Popular- 1 Custom Domain*
- Secure Agentic AI workflows
- Passwordless Authentication
- Unlimited Social Connections**
- 5 Organizations
- Brand Customization
- Basic Attack Protection
- Community Support
- 1 Enterprise Connection
- Self-Service SSO
- SCIM
Essentials
- Higher Auth, API limits, and Feature limits
- Pro Multi-Factor Authentication
- Role-based Access Control Per Organization
- 10 Organizations (How we model your customers)
- Stream Auth0 Audit Logs to Datadog, Splunk, AWS, Azure, etc.
- Separate Production & Development Environments
- Standard Support
Professional
- Use your existing User Database for Logins
- Enterprise Multi-Factor Authentication
- Custom Token Exchange
- Enhanced Attack Protection
- M2M Tokens (Add-on)
Enterprise
- Custom User & SSO Tiers
- 99.99% SLA
- Enterprise Rate Limits
- Enterprise Administration & Support
- Advanced Security Features (Add-on)
- Private Deployment (Add-on)
Duo Free
- Add up to 10 users
- Strong MFA
- Seamless integrations
- Free authenticator app
Duo Essentials
- Duo Directory
- Phishing-resistant MFA
- Complete passwordless authentication
- Single sign-on
- Trusted Endpoints
- Unlimited applications
Duo Advantage
Popular- Cisco Identity Intelligence (Cross-identity visibility, ISPM, and ITDR)
- Duo Passport
- Session theft protection
- Active Directory Defense
- Risk-Based Authentication
Duo Premier
- A comprehensive package for complete Zero Trust access
- VPN-less remote access to private resources
- Complete device trust with endpoint protection check
Auth0 vs Duo Security FAQ
- Which one is cheaper?
- Duo Security is the cheaper option, starting at $3/mo vs $35/mo for Auth0.
- Can I use either one for free?
- Both offer free plans, so you can try each without paying. Start with whichever fits your workflow better and upgrade when you hit the limits.
- How do they charge?
- Different approach here. Auth0 uses hybrid pricing, while Duo Security goes with per-seat. That changes the math depending on your team size and usage.
- Which one is a better deal?
- Depends on what you need. Auth0: Auth0 plays in the premium tier of the identity/auth space — it's pricier than rolling your own with Cognito or Supabase Auth, and it's positioned against competitors like Okta and Clerk for teams that'll pay for reliability and breadth of features over raw cost. They're chasing companies that see auth as too risky to DIY, not price-sensitive indie devs. Duo Security: At $3-9/seat, Duo sits mid-pack in the identity/MFA space — cheaper than bundled enterprise IAM suites like Okta's access products, but pricier than bare-bones MFA-only tools. They're clearly going after Cisco's existing customer base and mid-market companies that want strong MFA without buying into a full IAM platform.
Still deciding? See the best Auth0 alternatives or the best Duo Security alternatives, ranked with verified pricing.
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