
The main difference lies in the way you can interact with each screen. While a Non-Modal Screen allows users to simply go back to the parent screen, the Modal Screen requires users to complete an action before returning to the main window (“save” in our example) or cancel the current action.
nt of clicks as compare…imply tweaking the hamburger menu icon would significantly increase usability and reduce confusion. He found that icons labeled with the word “Menu” significantly increased the amount of clicks as compared to a normal hamburger menu, by as much as 20%.