Hi, I read your requirements and you need flutter app with these features
Logout, Login Buttons, Login Form, Search Form, Display Grid, and a simple form with three fields.
I have more than 5 years of experience in Flutter and worked on lots of programming languages. So don't worry about the quality of the work, I promise you to provide quality work. As I always work with proper documentation and planning so you upgrade your site anytime.
Just come inbox, I need to know more details. Also, let me know can we discuss further on call?