title: What is minimum size an app can use in split screen?
body: <p>I have an accessibility app that I need to overlay over other apps. I've been informed that's not possible. So if that's true I'd like to know if I can make my app take 1/4 or 1/8 the screen in split screen mode. Ideally it should take as little space as possible. The other app is the main focus and mine is there for accessibility. </p>
  
  <p>Is there a configuration I can set in my iOS app to indicate it take up only a quarter, eighth or sixteenth of the screen?</p>