Apps similar to itsme include 2FA Authenticator (2FAS), which is free and open source. Other options are Authy, Google Authenticator, FreeOTP and Authenticator Extension. You're spoiled for choice with Authenticators like itsme: we list more than 25 alternatives for iPhone, Android, iPad, Mac and Windows.
2faConsole is a lightweight, cross-platform two-factor authentication (2FA) console application built with C# .NET. It uses the dependency-free Pxoqxo.Otp2fa library to provide secure, terminal-based OTP 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...
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.
India
One-time password generator for RFC6238-based two-factor authentication that allows seamless transfer of one-time passwords from mobile phone to desktop browser via notification sounds.
OTP Manager is a simple Application for managing One Time Password (OTP) Tokens. OTP Tokens are 30 second time limited 6 digit numbers generated from a base63 encoded shared secret.
