next Kana

 mark Kana for custom selection (Settings -> Test Set -> Marked Entries)

 clear what you’ve just drawn

 next character (if Kana contains more than one character)

 previous character (if Kana contains more than one character)

 switch between system font, handwriting font and not displaying the character in the background of the drawing pad

 play Kana Audio file (available if Audio In-App purchase was done)

 shows the average success rate of the last Tests

 if activated switches automatically to the next Kana after you’ve drawn it X times

 which Infos are displayed by default on the practice page

 activate random order of Kana in Practice

 starts playing the Audio for each Kana when it opens in Practice