There are 4 different ways to navigate back on iOS applications:

• Tapping the Back button on the top-left of the screen. It usually contains the name of the previous page or section and a chevron pointing to the left.
• Swiping right from the left edge of the screen. Users can apply this action where the Back button is present.
• Pressing the Done or Cancel button. This is usually placed on the top-right corner of the modal view.
• Swiping down on content placed within a modal or fullscreen view. Fullscreen views are usually used for displaying photos or videos that take up the entire screen.