Nitrokey
Email Encryption. Encrypt your emails with GnuPG, OpenPGP, S/MIME or your favourite email client.
17 Alternatives To Nitrokey
AR Fidget Spinner
Fidget spinner, re-imagined in AR
Authenticator Plus
Authenticator Plus generates 2-step verification codes and lets you synchronize your accounts.
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Authy
Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
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FreeOTP
Open source implementation of the two-factor authentication HOTP and TOTP schemes.
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Google Titan
A 2FA device to protect yourself from hackers
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Instant 2FA
Add two-factor auth to any site in minutes
Invantive Authenticator
Invantive Authenticator is a two-step verification solution for use with TOTP-protected websites…
Krypton
An app store for mobile blockchain games
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OTP Auth
The app for calculating one-time-passwords on iPhone and iPad.
Obsidian - Elegant OTP Authenticator
Obsidian is an elegant OTP Authenticator app for both iOS and MacOS.
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YubiKey
The YubiKey is a one-time password device for secure login with two-factor authentication
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andOTP
andOTP is a two-factor authentication App for Android 4.4+