Does the iOS 7 UX benefits from its flat design? [closed]

1. Is iOS flat design?
2. Why is flat design popular?
3. Where is flat design used?

Is iOS flat design?

Flat design focuses on raw functionality, opposing the artificial design elements to have a simple design. Many people recognize flat design through the familiarity of both the Microsoft and iOS interface.

Why is flat design popular?

Flat design gets rid of unnecessary styling and elements that give an illusion of three dimensions (such as gradients, textures, and drop shadows). This is in contrast to skeumorphism, another design practice, which involves creating designs that resemble real-life objects.

Where is flat design used?

Flat design is a minimalist design language or design style commonly used in graphical user interfaces (GUI) (such as web applications and mobile apps), and also in graphical materials such as posters, arts, guide documents and publishing products.