These are the two fastest ways to switch between iPhone apps

This article explains two fast methods for switching between iPhone and iPad apps. The first method involves swiping left or right on a horizontal line at the bottom of the screen, allowing users to quickly move through a row of open apps. The second method utilizes the 'back' button that appears in the top-left corner when an app is opened from within another app, enabling navigation between two recently used applications. Both methods are compatible with iPhone and iPad devices; additionally, iPad users can use three-finger swipes on a trackpad or Command-Tab on a connected keyboard.