How to make a form appear only once

[Mavic_Pro]

Hi folks,

I need your expertise!

My app starts with an onboarding view that gives the user some quick instructions on how to use the app. The onboarding view finishes with a form view that asks user for their email and how they heard about the app and when the user taps submit, the details go to a google sheet and the primary views of the app appear and the user can then use the app as needed.

What I want to do is that when a user submits his/her email in the form, he/she should not be asked for those details again. The problem here is that everytime the app syncs, the same user gets to see the same form view to enter the same details again. If the user has already provided those details, he /she should not be asked again.

So, is there a formula that can help me to achieve this?

Thanks so much for your help.