MachForm can do this (and so much more) - with ease. If you search these forums, you’ll find quite a few threads about MachForm - all (I think) praising the software. MachForm is a stand-alone product that can easily be incorporated into any RW site by simply adding a few lines of html code. The processing is then handled on a page MachForm creates (I change the name of the folder from machform to forms before installing…so that my forms reside at YourDomain.com/forms).
I have a client who as a very long initial job application built in MachForm. It’s multipage and allows the user to save and come back using a different device. I built the initial application - but MachForm also has the ability to allow the client to add/modify/delete fields and/or questions. So, when the client thinks of a new question to ask, they just log in and add the question. EVERYTHING database-related is handled by the software. You create the database (or, if that’s not your thing, MachForm will do it for you for free), and never touch it again.
I have no idea how many installations I have, but it’s probably approaching 75 or so. I love, love, love MachForm. https://www.machform.com