OpenOTP Authenticator is a mobile authentication solution which provides secure access for websites, VPNs, Citrix, Cloud Apps, Windows, Linux, SAML, OpenID, Wifi and much more. With OpenOTP Authentication Server, it provides the most advanced user authentication system supporting simple registration with QRCode scan, Software Token based on OATH standards and Approve/Deny login with push notifications.

It is fully compatible with Google Authenticator and can also be used with third-party applications like Dropbox or Gmail.

Features include:
- Simple enrolment with QR scan on self-services
- Secure QRCode with online secret exchange
- OTP with OATH HOTP and TOTP standards
- Handy OTP display with Push notifications
- Approve/Deny login with Push notifications
- Unique fishing protection feature
- Spoken OTP with voice speech
- Touch ID and PIN protection
- Encrypted mobile storage