Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens for your online services.




andOTP is described as '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' and is a popular Authenticator in the security & privacy category. There are more than 50 alternatives to andOTP for a variety of platforms, including Android, iPhone, iPad, Mac and Android Tablet apps. The best andOTP alternative is Aegis Authenticator, which is both free and Open Source. Other great apps like andOTP are Ente Auth, Authy, 2FA Authenticator (2FAS) and Google Authenticator.
Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens for your online services.




Ente's Authenticator app helps you generate and store 2 step verification (2FA) tokens on your mobile devices.




Manage two-factor authentication seamlessly across various platforms with secure cloud backups and offline access. From Gmail to LastPass, enhance security effortlessly. Sync multiple devices securely and protect sensitive data with robust encryption.






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*.




Google Authenticator generates 2-Step Verification codes on your phone.




A free open-source two factor authentication app for Android. It features encrypted backups, icons, categories and a high level of customisation. It also has a Wear OS companion app.




Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.



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.




The multi-protocol security key offers the highest assurance, protecting devices with passwordless workflows and strong 2FA against phishing. It plugs into computers, tablets, and mobile devices, integrates PIN or biometric for identity verification, and reduces helpdesk costs.



OVault is a super simple OTP app that lets you view and manage OTPs for all your accounts. Set up OTPs by scanning QR codes with your devices Camera App, or by manually providing the OTP secret to the app.




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.




OnlyKey is an open source alternative to YubiKey. OnlyKey natively supports: a hardware password manager, multiple two-factor methods (FIDO2, TOTP, and Yubico® OTP), passwordless SSH login, and OpenPGP.




Authy syns your 2FA encrypted in the cloud, which is really user friendly as you don't have to manually backup anything.