OTP Auth vs U2F Zero
A side-by-side look at OTP Auth and U2F Zero. For an in-depth review of either product, follow the links below.
OTP Auth
Security & Privacy
OTP Auth is a free and open source two-factor authentication app for Android and iOS. It generates timed one-time passwords for use in two-factor systems. It supports both HOTP and TOTP standards and can scan QR codes to easily set up accounts.
twofactor-authenticationopen-sourceqr-codehotptotp
U2F Zero
Security & Privacy
U2F Zero is an open-source USB security key that supports the Universal 2nd Factor (U2F) authentication standard. It is designed to be small, inexpensive, and easy for users to carry for strengthening logins to websites.
u2fauthenticationopen-sourcehardware-token
Related Comparisons
WinAuth
Aegis Authenticator
Hydro Raindrop
CryptoPhoto
Token2 Mobile OTP
SecKey