title: How to have my accessibility app overlay other apps on iOS?
body: <p>I'm working on an accessibility app for a client and he needs it to be able to have it on top of other apps. It takes a small area and can be moved easily. </p>
  
  <p>Is there an app permission or config setting to do this?</p>
  
  <p><strong>UPDATE:</strong><br>
  An iPad owner sent me a screenshot showing a chat app floating on top of another app. </p>