In Android the Screenreader eats only 1 finger touch events.
I implemented several easy gestures that work with Android and TalkBack.
Like swiping with two fingers from left to the right opens the previous screen and swiping to the left opens the next screen.
These behaviors don’t work with IOS and VoiceOver. I don’t receive any MultiTouch Events while VoiceOver is active.
VoiceOver comes with several gestures, which I like to use and which I should use to make my App system conform. Voice over contains a 3 finger swipe gesture from left to right for turning the page / changing the screen back and forth. With VoiceOver active I also don’t receive any Event when I perform these gestures.