It is a super-simple app for people with disabilities to enter characters and show them to the other party.(It is an old version that does not have the function to rotate characters 180 degrees.)1. Enter characters.2. Fix the edit (to avoid erroneous input while showing).3. Adjust the font size (it is larger by default).4. Show it to the other party.5, clear.There is no save function or read aloud function.I think its easier to use if you put a shortcut on your desktop.