
It was a well-known approach to mobile UI for many years since it helped people to imitate the real world using lighting and shading effects.”
Flat design has been introduced with the motive to provide more aesthetic innovations along with a more user-friendly mobile environment.
These flat images look nice to decorate the webpage as well as allow the users to easily navigate through the page and read the valuable content.
Apple’s Flat design approach is independent of multi-dimensional elements and plays just with fonts, colors, and icons to enhance the beauty of the page.
Also, there are some mobile applications that demand complicated visual cues to guide the user through the process, which is one of the pain points of implementing the flat design style.
The Google’s material app design approach looks flat, but stays multi-dimensional, thanks to the application of z-axis.