It is an application that can be photographed with the image stored in the terminal.

[Icon Description (from the right)
① ON / OFF of the flash
② shutter
③ Rotation of the image read (90 degree intervals)
④ Read the image from within the terminal

[about an image read]
I can zoom by pinch in / out.
You can drag and move.

[Note]
This may or may not be used due to such as updating of the OS.
Difference between the paid version and the Free version is only the presence or absence of advertising.