ADF Mobile

ADF Mobile is a free mobile authenticator that supports OATH one-time password (OTP) authentication. OTP-based authentication supports open standards OATH HOTP(RFC4226) and TOTP(RFC6238) tokens. Tokens are created using standard QR codes issued by any 3rd party service, compatible with Google Auththenticator otpauth:// format and other OATH-compliant authenticators. Optional secure private-key signing authentication.