Four or five fingers multitasking gestures available on iPad allows users to pinch to the Home Screen, swipe up to reveal the multitasking bar, and swipe left or right between apps. Unfortunately patients can accidentally invoke those gestures thus closing YAPI unexpectedly.

 

To disable Multitasking Gestures go to Settings and swipe Multitasking Gestures switch off




Alternatively you can use iPad Guided Access Feature to completely lock iPad so users stay with YAPI.