On the iPhone, there are several apps that change the screen layout when you switch the body horizontally. “Memo” and “Mail” are divided into two screens in the list and preview, and “Map” floats in the state that the control panel is stretchable on the left side of the screen. Calendar changes the layout to make it easier to check the schedule by day/ week/month/year.
In this way, the screen layout that changes completely when holding the iPhone horizontally is called “landscape mode”, and is supported on some devices after the iPhone 6 Plus. The iPhone 11 series is supported by all models, so it may be recognized as a natural feature.
The purpose of landscape mode is to provide features and user interfaces optimized for horizontal screens, rather than changing them to a screen layout that is easy to operate when held horizontally.
If you use “calendar” as an example, the vertical screen is easy to grasp the schedule of the day, although you can see by scrolling the screen up and down, it is not suitable for the purpose of adjusting while staring at the schedule of the previous day and the next day. However, if you select the Week tab in landscape mode, the week’s schedule, including the day, will be changed to a layout that allows you to take a bird’s-eye view. On the Month tab, you can check your daily schedule by looking sideways at the monthly calendar.
Notes also provides features that are only available in landscape mode. In iOS 13, you can swipe left with three fingers to “Undo”, and swipe to the right with three fingers to “redo”, but in landscape mode you will see the Undo/Redo button at the bottom left of the edit screen. Because it is a button that is not displayed in normal mode, it seems to be worth using when three fingers flick feels difficult to handle.
Some features are only available in landscape mode