What is the difference between Rublon Authenticator vs Duo Single Sign-On (SSO)?

**Rublon Authenticator**: Free mobile app for MFA via push notifications, TOTP, and QR codes. built by Rublon. headquartered in Poland. Core capabilities include Mobile Push authentication with one-tap approve/deny, Offline TOTP-based Mobile Passcode generation, QR Code authentication.. **Duo Single Sign-On (SSO)**: SSO solution with MFA integration for cloud and on-premises applications. built by Duo Security. headquartered in United States. Core capabilities include Single sign-on authentication with digital token generation, SAML 2.0 and OIDC protocol support, Pre-built integrations for hundreds of applications.. Both serve the Multi-Factor Authentication and Single Sign-On market but differ in approach, feature depth, and target audience.

What features do Rublon Authenticator vs Duo Single Sign-On (SSO) offer?

**Rublon Authenticator** differentiates with Mobile Push authentication with one-tap approve/deny, Offline TOTP-based Mobile Passcode generation, QR Code authentication. **Duo Single Sign-On (SSO)** differentiates with Single sign-on authentication with digital token generation, SAML 2.0 and OIDC protocol support, Pre-built integrations for hundreds of applications.

Who makes Rublon Authenticator vs Duo Single Sign-On (SSO)?

**Rublon Authenticator** is developed by Rublon. **Duo Single Sign-On (SSO)** is developed by Duo Security. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Is Rublon Authenticator a good alternative to Duo Single Sign-On (SSO)?

Rublon Authenticator and Duo Single Sign-On (SSO) serve similar Multi-Factor Authentication and Single Sign-On use cases: both are Multi-Factor Authentication and Single Sign-On tools, both cover SSO, MFA, Authentication. Key differences: Rublon Authenticator is Free while Duo Single Sign-On (SSO) is Commercial. Review the feature comparison above to determine which fits your requirements.

Rublon Authenticator vs Duo Single Sign-On (SSO) (2026) | Compare Multi-Factor Authentication and Single Sign-On Tools

Rublon Authenticator

Free mobile app for MFA via push notifications, TOTP, and QR codes.

Multi-Factor Authentication and Single Sign-On

Free

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Duo Single Sign-On (SSO)

SSO solution with MFA integration for cloud and on-premises applications

Multi-Factor Authentication and Single Sign-On

Commercial

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Side-by-Side Comparison

Feature

Rublon Authenticator

Duo Single Sign-On (SSO)

Pricing Model

Free

Commercial

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Core Features

Mobile Push authentication with one-tap approve/deny
Offline TOTP-based Mobile Passcode generation
QR Code authentication
Biometric lock (Touch ID, fingerprint, Face Recognition)
PIN code app lock
Multi-account management within the app
Multiple devices per user support
Available on Android, iOS, and HarmonyOS

Single sign-on authentication with digital token generation
SAML 2.0 and OIDC protocol support
Pre-built integrations for hundreds of applications
Multi-factor authentication integration
Authentication logging and activity monitoring
Adaptive access policies for conditional access control
Integration with existing identity providers (Active Directory, Okta, PingFederate)
Support for cloud and on-premises applications

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Rublon Authenticator vs Duo Single Sign-On (SSO): 2026 Comparison

Rublon Authenticator

Duo Single Sign-On (SSO)

Side-by-Side Comparison

NIST CSF 2.0 Mapping

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