Side by side
Cisco Duo Passwordless vs privacyIDEA
Both stand on multi-factor authentication software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan AndroidiPhoneLinux+3
Visit Cisco Duo Passwordless 
Free plan AndroidAPIiPhone+4
Choose privacyIDEA if you need an open source authentication server for adding two-factor authentication to existing services and want a WebUI, integrations, and multiple token types. Organizations needing professional support and service level agreements can consider NetKnights Enterprise Edition, starting with the listed Small Business plan at €165 a month.
Visit privacyIDEAThe facts
| Cisco Duo Passwordless | privacyIDEA | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Android, iPhone, Linux, Mac, Web, Windows | Android, API, iPhone, Linux, Self-hosted, Web, Windows |
| Lowest paid plan | Not published | Small Business: €165 a month |
| Plans published | None | 3 |
| Maker | Not published | Not published |
| Website | duo.com | privacyidea.org |
| On multi-factor authentication software | #17 of 52 | #13 of 52 |
Cisco Duo Passwordless: what it does well
privacyIDEA: what it does well
- Open source under the AGPLv3 license.
- Supports a broad range of authentication factors, including passkeys and WebAuthn.
- Reads users from LDAP, Active Directory, SQL databases, flat files, and SCIM services.
- Provides a REST API with JWT authentication.
- Digitally signed audit entries and AES-encrypted token secrets.
What to know first
- The open source software runs on Linux.
- The paid Small Business plan costs €165 a month.
- Enterprise support plans are billed monthly at listed prices.
Alternatives to Cisco Duo Passwordless Alternatives to privacyIDEA The whole list