This app is is used to draw on the web pages and is very similar to the Edge Browser write on web feature. This is a very good utility app when you are in a presentation and you want to highlight some of the features while presenting from webpages. You can draw on the webpages instantly by clicking the icon and remove the drawn content by clicking on the button again. This is on great use when using on the touch screen devices and you can just start drawing on the webpages.
If you face any difficulty please comment down. I am an indie developer and if you want more feature then comment it down too.