It is an alarm clock application with a color sensation test.
When you find a tile of a different color from tiles of similar color and tap it, a stop button is displayed.
Multiple alarms can be set, each can be set by message or day of the week and stop method.
It is preparing game levels, calculation problems, shaking, etc. as a stop method.

Since it operates in the background using the notification function of iOS, it is not necessary to turn on the screen like some alarm clock application.
If you attach earphones, the alarm will not sound from the main unit. You can also make the alarm sound "silent".

In addition, it have a one-minute game mode. You can access from the game icon in the lower left.