Your digital identity will make life easier. Checking people's details confirming the person you’ve met online is who they say they are. Proving your identity to businesses. Proving your age online and out. Securely register and log into websites.



Authorizer is described as 'A Password Manager for Android with Auto-Type over USB and Bluetooth, OTP and much more' and is a Authenticator in the security & privacy category. There are more than 25 alternatives to Authorizer for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Linux apps. The best Authorizer alternative is Bitwarden Authenticator, which is both free and Open Source. Other great apps like Authorizer are 2FA Authenticator (2FAS), Authy, andOTP and YubiKey.
Your digital identity will make life easier. Checking people's details confirming the person you’ve met online is who they say they are. Proving your identity to businesses. Proving your age online and out. Securely register and log into websites.



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.



Etopa is the most popular Web-based alternative to Authorizer.
GTK+ application for securely managing TOTP & HOTP tokens. Content is encrypted on disk using AES256-GCM. Master password derived using PBKDF2 with 100k iterations & SHA512 as hash algorithm. Can import encrypted backups from andOTP & Authenticator+.



An awesome two-factor authenticator based on Flutter, supports Android, Windows and Linux platforms, and supports multiple cloud backup methods such as Onedrive, Dropbox, WebDAV, S3Cloud, etc.

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.



Incognia is the most popular SaaS alternative to Authorizer.
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.




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.



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.

MFAuth is a free, secure and completely offline application that offers 2-step verification for managing your online accounts and services, thus helping to protect your accounts from hackers.


