Left: to show, altar 示/礻 (image of an altar 丁 with sth. 一 on, that is shown), right: barrel of sake 畐 (an altar offering, hence also: prosperity, luck)
Mnemonic
At the altar is a sake-barrel that brings: good luck.
Developed from the image of a sake barrel, which is a typical temple offering at New Year. - The kanji 畐 also used as 'to fill' or 'roll of cloth' [フク]
The app has many other functions, such as character selection according to difficulty, practice programs, handwriting recognition and success statistics!
