I like that it allows me use my email address as OTP instead of having another app downloaded or installed - no additional permissions required! It's very easy & user friendly in terms how you can set up an application by yourself using your contact/email info already available within WhatsApp etc., but what would be more appealing are some options such has "Verify via Google Authenticator", so people don't have their accounts compromised if they forget passwords / reset them after losing device data + backups ;-) Overall great product at affordable rates even when compared against other services which charge higher fees per transaction! I like that this app allows me to login to my website using just my email address and password. This makes it easier than having to go through 2 steps of typing in an OTP every time. Sometimes when you are trying to verify your account, there's nothing but white space left to type. It would be nice if they could add more information about what went wrong. Make sure to use a strong password because people can easily guess them! We have been able to reduce our security breaches by 100%.