Apps similar to Duo mobile include Aegis Authenticator, which is free and open source. Other options are Proton Authenticator, 2FA Authenticator (2FAS), Authy and Stratum. Authenticators like Duo mobile are a crowded field, with more than 50 alternatives for iPhone, Android, iPad, Mac and Linux.
SAASPASS is an Authenticator, Password Manager and a repository for Secure notes. It also secures access to computers such as Macs and Win with two-factor authentication. It can be used for personal use and/or by a company to secure their cloud apps.
United States
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.
India
Belgium
EU
HENNGE OTP Generator is a virtual device application for multi-factor authentication (MFA), so-called two-step verification, which generates time-based one-time passwords (OTP).
Japan
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.
Fast, offline 2FA codes in your browser — TOTP two-factor authentication. Quick import from Google Authenticator.
Authenticator generates secure 2 step verification tokens on your device. It help’s you protect your accounts even more.
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.
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
Kerveros is a robust two-factor authentication code generator that combines ease of use with enterprise-grade security. It generates time-based one-time passwords (TOTP) for your online accounts while keeping your secrets encrypted and protected.
Blue2Factor is here to show that with all the technology we have at our fingertips, stricter authentication doesn't need to be more complex. It just needs to be smarter.
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...
