The Best 20 Duo mobile Alternatives
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44 LikeGoogle Authenticator
Google Authenticator generates 2-step verification codes on your phone. Enable 2-step verification to protect your account from hijacking by adding another layer of security.
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3 LikeCryptoPhoto
CryptoPhoto gives you a fast and safe way to log into your favorite participating web sites while enjoying leading-edge protection against phishing, malware attacks, and...
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2 LikeAuthenticator Plus
Authenticator Plus generates 2-step verification codes and lets you synchronize your accounts.
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2 LikeLastPass Authenticator
LastPass Authenticator offers a unique one-tap password verification experience that no other authenticator app delivers.
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2 LikeOpen Authenticator
A trusted open-source Authenticator. Formerly known as SmartWatch2 Authenticator free.
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1 LikeAuthenticator
Authenticator is a simple, free, and open source two-factor authentication app. It helps keep your online accounts secure by generating unique one-time passwords, which...
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1 LikeHDE OTP Generator
HDE OTP Generator is a virtual device application for multi-factor authentication (MFA), so-called two-step verification, which generates time-based one-time passwords...
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1 LikeToken2 Mobile OTP
Token2 mobile application can be used with Token2 service, or any other TOTP and Mobile-OTP compliant service with additional features such as possibility of PIN code...
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1 LikeProtectimus SMART OTP
Protectimus SMART is a free easy-to-use software OTP token. It generates 2-factor authentication codes on your phone. Supports HOTP and TOTP algorithms, English and...
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1 LikeMicrosoft Authenticator
One app to quickly and securely verify your identity online, for all of your accounts.
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0 LikeYandex.Key
Two-factor authentication app for Yandex accounts and also other QR-code based 2FA.
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0 LikeOTP Manager
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...
