Interesting idea. I had actually thought about putting together a similar service for clients. Especially like the "guess for me" options.

Some feedback:

- You offer a trial, but that wasn't clear to me looking at your marketing/home page.

- It's nice to be able to see if not a full demo, at least screenshots of the product without having to register. This combined with the first point could deter some potential customers.

- Your payment form is very sparse. That's nice, but personally I want to know why I should trust you with my payment info. If you're using a third party processor such as stripe you might indicate that.

You provide zero information about how this very sensitive information is stored, and how its protected.

So not only do I have to worry about who you are (because I'd essentially be giving you the ability to access any number of services that may not yet have 2FA options) I also have to worry about if that data can be access by someone else who attacks you.