The bottom of the pricing page (https://vectormagic.com/pricing) mentions that you can purchase "tokens", where 1 token == 1 image. You need to sign up for an account to view a token pricing list, which is annoying, but fortunately that's as easy as providing them with an email address -- there isn't even an email verification hoop to jump through.

5 tokens is $14.05 ($2.81/image), 10 tokens is $26.65 ($2.67/image), and 20 tokens is $48.60 ($2.43/image).