Is there on the App Market any form app (similar to Gravity Forms if it's familiar to you) where you can introduce formula fields in order to create something like a calculator? For example, something simple like this: https://gabrielsincraian.com/strength-calculator/
I found one named "Custom Price Calculator" where I could add formulas but, of course, it's made for products and the "end formula" is to calculate the final price, which I do not need. I want to introduce this form (more like a calculator) to a page. I could create a custom code one, but it would be much easier for the client through an app.
If there is anything close to the things I said, please let me know.