<b>NOTE:</b> App repo is archived by dev. No longer maintained. OTP Authenticator is a two-factor authentication App for Android 4.0+. It implements Time-based One-time Passwords (TOTP) like specified in RFC 6238. Simply scan the QR code and login with the generated 6-digit code. Features: * Free and Open-Source * Requires minimal permissions * Encrypted storage on Android 4.3+ * Sleek minimalistic Material Design * Great Usability * Compatible with Google Authenticator