Duo Security vs Auth0 Pricing (2026)
How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.
| Duo Security | Auth0 | |
|---|---|---|
| Starts at | $3/mo | $35/mo |
| Number of plans | 4 | 4 |
| Free plan | ||
| Free trial | ||
| Pricing model | per-seat | usage-based |
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
Free
- 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
- Enhanced Attack Protection
- M2M Tokens
Enterprise
- Custom User & SSO Tiers
- 99.99% SLA
- Enterprise Rate Limits
- Enterprise Administration & Support
- Advanced Security Features
- Private Deployment
Duo Security vs Auth0 FAQ
- Which one is cheaper?
- Duo Security starts lower at $3/mo, compared to $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. Duo Security uses per-seat pricing, while Auth0 goes with usage-based. That changes the math depending on your team size and usage.
- Which one is a better deal?
- Depends on what you need. Duo Security: At $3–$9/user/month, Duo sits in the affordable-to-mid range for identity security — well below Okta's MFA add-ons and competitive with Microsoft Authenticator bundles for orgs not already in the M365 ecosystem. They're clearly targeting security-conscious SMBs and mid-market teams that want enterprise-grade MFA without enterprise-grade pricing. Auth0: Auth0 sits in the premium tier of the identity-as-a-service space, competing directly with Okta (which owns them), Firebase Auth, and Clerk. They're not the cheapest option — Clerk and Firebase undercut them at lower MAU counts — but they're selling on compliance depth, extensibility, and brand trust with enterprise buyers.
Keep tabs on both.
We'll monitor pricing changes for Duo Security and Auth0 and let you know when something moves.