Etopa is a two-factor-authentication app, which runs as a web server and can be accessed using a web browser or using an Android app. You can use the Etopa.de instance or host your own.
Cost / License
- Free
- Open Source
Platforms
- Online
- Android




YubiKey is described as 'A multi-protocol, highest assurance security key offering passwordless workflows and strongest 2FA against phishing, protecting devices efficiently' and is a Authenticator in the security & privacy category. There are more than 25 alternatives to YubiKey for a variety of platforms, including Android, iPhone, iPad, Linux and Mac apps. The best YubiKey alternative is Nitrokey. It's not free, so if you're looking for a free alternative, you could try 2FA Authenticator (2FAS) or Authy. Other great apps like YubiKey are OnlyKey, Microsoft Authenticator, OVault and KeyVault.
Etopa is a two-factor-authentication app, which runs as a web server and can be accessed using a web browser or using an Android app. You can use the Etopa.de instance or host your own.





Two-factor authentication app for Yandex accounts and also other QR-code based temporary codes for two-factor authentication




Location-based behavioral biometrics SDK and APIs for frictionless mobile identification verification and authentication.



Google Titan Security Keys offer two-factor authentication to prevent phishing and man-in-the-middle attacks. They support FIDO standards and come in USB-A, USB-C, and Bluetooth formats, ensuring compatibility with various devices and services.




Krypton implements the standardized FIDO Universal 2nd Factor (U2F) protocol to provide secure, un-phishable two-factor authentication on the web, using just your phone.




Sentinel is an elegant OTP Authenticator app for both iOS and MacOS. It relies only on the Apple's iCloud Keychain to share data across devices.




This app is created for use with the YubiKey NFC and NEO to copy One-time-passwords (OTPs) from a YubiKey into the iOS clipboard.

Stop account takeovers, protect your employees and applications, and eliminate passwords with DIGIPASS® FX7, a FIDO-enabled, phishing-resistant authenticator. DIGIPASS FX7 enhances security while simplifying the login process, enabling a ‘work from anywhere, anytime’ policy.



TOTP Authenticator makes it simple and easy to enable 2-factor authentication on your accounts. The app provides option to backup data offline or on the cloud. Features like Push to Chrome, dark theme, custom icons and widgets make the app stand out.




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