The app is an Apple Watch-only app. It is especially useful for mental exercise while you are WAITING -- for a meeting or appointment, for an air flight, or train, etc. It can be used by all ages and is easy to be learned. Proceeds from the app go to medical research on neurological (brain) diseases.

The game exercises observation skills and memory. It starts out presenting two emojis whose appearance needs to be memorized. As the game is used, the player can increase the number of emojis from two, up to twenty at a time, to provide more training and challenges.

Apple’s Voice-Over technology provides aid in this app to the visually-impaired. The game is intuitive and requires no special language skills or cultural background.