A free program for Android, by Nihon System Developer Corp..
The purpose of this app is to make it easy for you to play the popular game Okyou, which is a guessing game where you try to figure out the word by spelling it out. You can also try to figure out the meaning of the word.
The game is played on a five-by-five grid. On each turn, you can move your token to an empty space on the grid, or to a space that is occupied by an object or a word, or a group of objects. When you move your token to an empty space, you can add any of the objects to your stack.
