Swivel AuthControl Sentry Alternatives

Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.

Protectimus multi-factor authentication solution is powerful and flexible, and scales to meet the needs of any business

freemium

B2B SaaS: Make your app enterprise-ready! Authentication - SAML/OIDC SSO, Directory Sync (SCIM 2.0), Audit Logs, Data Privacy Vault, and more!

Try for free Open Source free $49.0 / Monthly (Per connection)

Duo Security provides cloud-based two-factor authentication. Duo’s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.

Simply Strong Two-Factor Authentication LoginTC is best in class. Effortless Administration. Intuitive User Experience. Cost-effective solution for all organizations.

Open Source freemium $3.0 / Monthly (Professional Tier)

YubiKey provides security solutions for strong two-factor authentication using U2F, OTP, PIV, and more.

Google Authenticator is a multifactor app for mobile devices.

free

DIGIPASS offers two-factor​ authentication solutions for mobile applications.

Symantec VIP provides user friendly two-factor authentication services to protect networks, applications, and data.

Rublon enables your workforce to securely access your organization's networks, servers and applications via easy-to-use multi-factor authentication. Protect cloud apps, VPNs, servers, workstations, internal as well as on-premise apps.

freemium $1.0 / Monthly (per user)

inWebo is a SaaS provider of Identity Protection & two-factor Authentication built to secure access to VPN, web sites, Mobile and Cloud Apps.

Mi-Token was developed by cryptographic and bank security specialists, designed specifically for two-factor authentication within the banking industry.

Clef is secure two-factor with no passwords or tokens.

andOTP is a two-factor authentication App for Android 4.4+