You can use Hot Corners on the iPhone and iPad just like you can on a Mac. However, the functionality depends on using a pointing device like a mouse and is meant more as an Accessibility function.
Jonathan: No. A pointing device is a mouse or trackpad. The key is it uses a pointer (often mistakenly called a "cursor") which is always present and you move it around with the mouse or trackpad. An Apple Pencil is a touch device, like your finger, that can be present (touching) or not.
Math is my favorite thing to do
Gary is the Apple Pencil considered a pointing device for the iPad?
Jonathan: No. A pointing device is a mouse or trackpad. The key is it uses a pointer (often mistakenly called a "cursor") which is always present and you move it around with the mouse or trackpad. An Apple Pencil is a touch device, like your finger, that can be present (touching) or not.