Side by side
Duo Mobile 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.
Duo Mobile combines app-based approvals and passcodes with organizational integration and policy options. Consider the administrator support boundary and the features included in each plan before choosing it.
Visit Duo MobileChoose 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
| Duo Mobile | privacyIDEA | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Android, iPhone | Android, API, iPhone, Linux, Self-hosted, Web, Windows |
| Lowest paid plan | Duo Essentials: $3 a month | Small Business: €165 a month |
| Plans published | 4 | 3 |
| Maker | Not published | Not published |
| Website | duo.com | privacyidea.org |
| On multi-factor authentication software | #9 of 52 | #13 of 52 |
Duo Mobile: what it does well
- Push approvals allow one-tap login decisions.
- Generates time-based passcodes and supports third-party TOTP.
- Duo Restore backs up and restores protected accounts.
- Adaptive policies can account for device health.
- Free plan covers 10 users.
What to know first
- Available mobile platforms are iOS and Android.
- End-user enrollment and troubleshooting go through the organization administrator.
- Site-to-site networking is not supported.
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 Duo Mobile Alternatives to privacyIDEA The whole list

