Question regarding native mobile apps for startups

Hi guys, I found some idea for my side project, but before I dive into it, I would like to validate if it's useful or not.
I created a simple google form, and I would like to ask you my dear friend to help me. Answer 3 questions and I will post results here.

Here is the link - https://docs.google.com/forms/d/e/1FAIpQLSccI_-PMxhiDz5JOw_zDKcgPkXO3ML0g1N0dDNyrtBkOpeAOQ/viewform

Thank you very much.