Can gravity form work without wordpress?

I am new to gravity form. And I am looking for a solution to create a public forum. In my use case, I would like to push data into Salesforce. I am using the following guide to create a public forum.

I follow the steps described here to use gravity form with Salesforce. I like the pricing and features of gravity form.

My question is can I use gravity forms without using WordPress site? Currently, I don’t have any WP site. Or is there any alternative?

Gravity Forms is a WordPress Add-on and requires either a self-hosted WordPress website or Business subscription.

You cannot use Gravity Forms without WordPress, sorry.