Overlay and Accessibility Permissions for ios Apps

I am developing an app that requires user to turn on overlay permissions (with a prompt provided to the user) as well as accesibility settings. The goal is display a floating button on screen, which reads screen content only when user taps on that button. It is not a persistant overlay because user can make floating button disappear by turning it off in side the app. I want to know if apple app store policies will be ok with this kind of feature and if there is anything particular I need to comply with to enable my app in the app store?