# Circle Security Circle Access vs Cisco Duo Passwordless: side-by-side comparison (2026) [Circle Security Circle Access](https://cybersectools.com/tools/circle-security-circle-access) is a commercial [MFA & passwordless](https://cybersectools.com/categories/user-authentication) solution by [Circle Security](https://cybersectools.com/companies/circle-security). [Cisco Duo Passwordless](https://cybersectools.com/tools/duo-passwordless) is a commercial [MFA & passwordless](https://cybersectools.com/categories/user-authentication) solution by [Duo Security](https://cybersectools.com/companies/duo-security). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [Cisco Duo Passwordless](https://cybersectools.com/tools/duo-passwordless) Best for: Hybrid estates moving from MFA to passwordless in stages We did not find enough recent first-hand reviews of this product to summarize what customers say. From [Best MFA and Passwordless Solutions for Business](https://cybersectools.com/shortlists/best-mfa-passwordless-solutions), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). Need the answer fast? [Best MFA and Passwordless Solutions for Business](https://cybersectools.com/shortlists/best-mfa-passwordless-solutions) picks Okta Adaptive MFA, Cisco Duo Passwordless, Beyond Identity Phishing-Resistant MFA and 4 more. ## Side-by-side comparison | | Circle Security Circle Access | Cisco Duo Passwordless | |---|---|---| | Pricing model | Commercial | Commercial | | Category | MFA & Passwordless | MFA & Passwordless | | Verified | No | No | | Deployment type | Cloud | Hybrid | | Company size fit | Enterprise, Mid-Market | Startup, SMB, Mid-Market, Enterprise | | Company | Circle Security | Duo Security | | Headquarters | – | – | ### Use cases and capabilities | | Circle Security Circle Access | Cisco Duo Passwordless | |---|---|---| | Authentication | Yes | Yes | | Zero Trust Architecture | Yes | – | | MFA | Yes | Yes | | NIST | Yes | – | | ZTNA | Yes | – | | SSO | Yes | – | | Least Privilege | Yes | – | | BYOD | Yes | – | | REST API | Yes | – | ### Core features **Circle Security Circle Access** 7 features listed. Sign in on the page to see them. **Cisco Duo Passwordless** 10 features listed. Sign in on the page to see them. ### Integrations **Circle Security Circle Access** No integrations listed. **Cisco Duo Passwordless** 14 integrations listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Circle Security Circle Access](https://cybersectools.com/tools/circle-security-circle-access) fits if you want a cloud product. - [Cisco Duo Passwordless](https://cybersectools.com/tools/duo-passwordless) fits if you need both cloud and on-premises options and you are a startup or a small business. ## Circle Security Circle Access vs Cisco Duo Passwordless FAQ Common questions when comparing Circle Security Circle Access vs Cisco Duo Passwordless for MFA & passwordless. ### What is the difference between Circle Security Circle Access and Cisco Duo Passwordless? **Circle Security Circle Access**: Credential-free authentication via QR scan with zero credential storage. Built by Circle Security. **Cisco Duo Passwordless**: Passwordless authentication solution using biometrics, security keys, and MFA. Built by Duo Security. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Circle Security Circle Access and Cisco Duo Passwordless? **Circle Security Circle Access** is made by Circle Security. **Cisco Duo Passwordless** is made by Duo Security. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Circle Security Circle Access a good alternative to Cisco Duo Passwordless? Often, yes. Circle Security Circle Access and Cisco Duo Passwordless are both MFA & Passwordless products, and both cover Authentication, MFA. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Circle Security Circle Access vs Cyphercor MFA Solutions](https://cybersectools.com/compare/circle-security-circle-access-vs-cyphercor-mfa-solutions) - [Circle Security Circle Access vs Lastwall](https://cybersectools.com/compare/circle-security-circle-access-vs-lastwall) - [Circle Security Circle Access vs Gradient for Users](https://cybersectools.com/compare/circle-security-circle-access-vs-gradient-for-users) - [Cisco Duo Passwordless vs Cyphercor MFA Solutions](https://cybersectools.com/compare/cyphercor-mfa-solutions-vs-duo-passwordless) - [Cisco Duo Passwordless vs Lastwall](https://cybersectools.com/compare/duo-passwordless-vs-lastwall) - [Cisco Duo Passwordless vs Gradient for Users](https://cybersectools.com/compare/duo-passwordless-vs-gradient-for-users) ## Alternatives to each - [See all Circle Security Circle Access alternatives](https://cybersectools.com/alternatives/circle-security-circle-access) - [See all Cisco Duo Passwordless alternatives](https://cybersectools.com/alternatives/duo-passwordless) --- Source: https://cybersectools.com/compare/circle-security-circle-access-vs-duo-passwordless For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/circle-security-circle-access.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Circle Security Circle Access and Cisco Duo Passwordless: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md