[smoldesu]

This looks cool. Unfortunately, I can get 99% of the way there with a regular NFC tag that has my contact info and a link to my website. Doing that, I can link to my own website and keep everything up-to-date and I don't need to trust others for security.

With all that in mind, I think your actual product is kinda thin and easy to disrupt. I wish you luck (I'm surprised more people don't use NFC business cards) but I'm not sure about your staying power with the current iteration.

[bdominy]

You may be right. It isn't easy to convince people to try something new. As for your website contact info link, how do you tell people that have the link to revisit it when you've made a change?