Is iOS navigation bar placement at the top of screen a design flaw?

1. What is top navigation bar?
2. Can you have a navigation bar on iPhone?
3. Where is the navigation bar on iPhone?

What is top navigation bar?

The top navigation for your site is the horizontal red bar that lists sections or pages of your website. In many cases, the top navigation includes dropdown menus that display subpages of sections as well.

Can you have a navigation bar on iPhone?

Use UINavigationBar to display your app's navigational controls in a bar along the top of the iOS device's screen. You can also design a distinctive navigation bar that matches your app's design and creates intuitive interaction for your users.

Where is the navigation bar on iPhone?

According to Apple documentation, "An iOS Navigation bar appears at the top of an app screen, below the status bar, and enables navigation through a series of hierarchical app screens.