Krypton is described as 'Implements the standardized FIDO Universal 2nd Factor (U2F) protocol to provide secure, un-phishable two-factor authentication on the web, using just your phone' and is an app in the security & privacy category. There are more than 10 alternatives to Krypton for a variety of platforms, including Android, iPhone, Android Tablet, iPad and Mac apps. The best Krypton alternative is Bitwarden Authenticator, which is both free and Open Source. Other great apps like Krypton are Authy, Google Authenticator, YubiKey and Keysmith.
Two-step verification app with offline code generation, HOTP and TOTP support, biometric login, local auto backup, QR and image import, multi-language interface, account personalization, dark mode, label grouping, and data privacy controls for secure management.
A simple application for multi-factor authentication, written in HTML using jQuery Mobile, jsSHA, LocalStorage and Application Cache. It implements the TOTP (Time-Based One-Time Password) algorithm according to RFC6238 and has been tested to work with Google Authenticator...
Infomaniak Auth is a free mobile application that improves and simplifies the security of Infomaniak accounts protected by two-factor authentication.
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