TOTP is gaining popularity on many mainstream web sites, since its adoption by Google ® Authenticator, and OTP will generate One Time Passwords compatible with Google ® Authenticator using its default settings for TOTP.
Server side implementations for RFC2289 One Time Passwords are readily available on the internet and included in most linux distributions. Implementing such a system can provide an additional level of security, particularly when logging into servers across the public internet.
Key features of OTP include -
Quickly generate One Time Password responses to appropriate challenges
Save regular host details to speed up the generation process
Copy generated response details to the clipboard
Available as an In-App purchase, OTP Pro adds the following functionality -
Removes the banner adds displayed in the free app
Custom URL scheme to allow easy sharing of RFC2289 challenges and responses