This app is a widget to show you date and time.
On the transparent background, it doesn't show you with the number, but with the letters.
One fascinating thins is that it use fonts of the OS system(which you selected), so you can. change app's font with ease.
rectifying : twelve -> twenty ^^
Tags: text calendar widget , text/calendar , 달력 위젯 재부팅 , 캘린더 위젯 , widget text calendar , simple text , simple text calender , text%2fcalendar , simple calendar widget mobile apps