Protectimus Smart OTP by Protectimus Ltd is a multi-factor authentication app designed to enhance security by generating one-time passwords (OTPs) required for logging into accounts in addition to traditional usernames and passwords. It supports multiple authentication methods, including time-based (TOTP), event-based (HOTP), and challenge-based (OCRA) algorithms. Protectimus Smart OTP is available for both iOS and Android platforms and offers user-friendly features such as customizable tokens, convenient distribution of OTP tokens by folders, and PIN and biometric authentication protection. It includes a data signature function for transaction control, ensuring robust protection against unauthorized access. The app supports encrypted cloud backup, allowing users to recover their 2FA tokens if their device is lost or upgraded. Users can transfer tokens to a new device and import tokens from Google Authenticator, simplifying the switch from other 2FA authenticators. Protectimus Smart OTP supports multiple languages, including English, French, German, Spanish, Russian, and Ukrainian, making it accessible to a wide range of users. The app generates unique codes on the user’s smartphone or tablet, changing every 30 seconds, and provides two-factor push notifications for added security.