What is a dynamic qr code?

A dynamic qr code is a qr code in which the linking destination url can be changed without altering the qr code. For example; you link test.com to your qr code, you can later change it to sample.com and the qr code is still the same.
This is accomplished by assigning a short url to the qr code. When the qr code is scanned it links to the short url. The short url then links to your chosen destination url, which you can change as often as you want.

What is a Biolink?

A Biolink is simply a single page website that contains all of a person or companies links. Called a "Biolink" due to it's use in social media profile "Bio" sections.
Biolinks most commonly contain name, social media links, blog links and often phone and email links.