Nimbus: A digital spending first credit card

From reading the front page, I'm not sure I understand what it is.

Is it something that is middle-ware for existing credit card(s) that handles subscriptions/cancellations? Or is it a 'virtual' card itself? If the latter, I don't see what payment options/systems it works through (Visa, Mastercard, etc).

There is no reference to a legal entity behind it on any of the page, and no reference to privacy or how personal and financial data is handled, so I will not be touching the 'sign up' button.

For the use-case it seems to be focusing on:

Cancel subscriptions and get refunds, plus some money-back scheme. These are 'nice-to-have' features of a payment product.

But core features, at least to me, not addressed on the landing page are: "Where can I use it?" "How reliable is it?" "How safe is it?" "What are the fees [if no fees, why no fees]?" "How's my data handled?" Only then do "What are the bonus features?" start to be a differentiator.

> Would love to get your thoughts

The concept sounds lame to me.

Nimbus is a virtual credit card and app that saves you money on your online spending and in-app purchases. It’s easy to sign up for and completely digital.

Would love to get your thoughts