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 | hybrid |
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
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 (New)
- SCIM (New)
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 (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 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 hybrid. That changes the math depending on your team size and usage.
- Which one is a better deal?
- Depends on what you need. Duo Security: Duo sits mid-market in the identity/MFA space — pricier than bare-bones MFA tools but noticeably cheaper than bundling full IAM suites like Okta, which makes it the go-to for teams that want Cisco-backed security without buying into a whole identity platform. Auth0: Auth0 plays in the premium lane compared to newer entrants like Clerk or Supabase Auth, banking on Okta's enterprise pedigree and battle-tested reliability to justify the price gap. They're not chasing indie developers on cost — they're defending enterprise accounts that need compliance certifications and won't blink at custom pricing.
Still deciding? See the best Duo Security alternatives or the best Auth0 alternatives, ranked with verified pricing.
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