Tap Control on Android

In Unity,a finger input called touch. So, in your input class, you have a function called "GetTouch", use that function to get your touches/taps. A "touch" is really a struct with information you may need, when the user touches the screen.

See touch struct documentation.

A touch is the same on both Android and on iOS.

Here is a simple example:

 Update()
 {
   if (Input.touchCount > 0) 
   {
     // code here for what you want to do when screen is touched
   }
 }

For more information, read about the input-class and the GetTouch function in the documentation.

Input documentation

GetTouch documentation

Good luck!