Authy is a simple way to manage two-factor authentication accounts. Authy supports Gmail, Dropbox, LastPass and thousands of other sites.
- - Authy is the most popular Windows, Android, Mac & iPhone alternative to itsme.
- - Authy is the most popular free alternative to itsme.
It implements Time-based One-time Passwords (TOTP) and HMAC-Based One-Time Passwords (HOTP). Simply scan the QR code and login with the generated 6-digit code.
- - andOTP is the most popular Open Source alternative to itsme.
Unmaintained, see https://github.com/andOTP/andOTP and developers announcement on XDA https://forum.xda-developers.com/t/app-4-4-open-source-andotp-open-source-two-factor-authentication-for-android.3636993/post-87021655. The GitHub repository was also archived in June 2022.
FreeOTP is a two-factor authentication application for systems utilizing one-time password protocols with support for Android (6 or later) and iOS (11 or later). Tokens can be added easily by scanning a QR-code or by manually entering in the token configuration.
Google Authenticator generates 2-Step Verification codes on your phone.
Google Authenticator Features
Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.
Authenticator Extension Features
Sign in is easy, convenient, and secure when you use Microsoft Authenticator. Use your phone, not your password, to log into your Microsoft account. You simply have to enter your username, then approve the notification sent to your phone.
Microsoft Authenticator Features
2FAS Authenticator is a simple and free application for Two Factor Authentication (2FA Authentication) which generates Time-based One-time Passwords (TOTP) and PUSH authentication*.
2FA Authenticator (2FAS) Features
FreeOTP+ is a fork of FreeOTP with an updated user interface and with backup/restore functionality (to external files or via built-in Android backup/restore).
FreeOTP+ (fork of FreeOTP) Features
OpenID is an open standard that describes how users can be authenticated in a decentralized manner, eliminating the need for services to provide their own ad hoc systems and allowing users to consolidate their digital identities.
- - OpenID is the most popular Web-based alternative to itsme.
Tofu generates one-time passwords to help you protect your online accounts. These passwords are used together with your normal password when you sign into services like Google, Facebook, Dropbox, Amazon, and GitHub.
Tofu Authenticator Features
LastPass Authenticator is a two-factor authentication app for your LastPass account and other supported apps. LastPass Authenticator offers simple, secure authentication to your accounts by generating passcodes for login or receiving push notifications for one-tap approval.
LastPass Authenticator Features
The app for calculating one-time-passwords on iPhone and iPad. OTP Auth can be used with any service that uses one time passwords. This includes services like Dropbox and GMail with two-step-verfification enabled. OTP Auth is QR code enabled.
OTP Auth Features