BrainTrainer WatchFace is a colorful and customizable watch face.
And it adds interactivity to your watch, to train your brain in a never ending session!
No companion app on phone is required, no need to launch an app on your smartwatch!
Just set this watchface and use it.

When the watch face is activated, its background can have one out of three different colors.
If you are ready to play, simply tap the small ball of the same color as the background of the watch face.
Now remember this color!
Next time you activate the watch, the background will change color: tap the same ball you previously tapped, then tap the ball of the new color.
Time after time you have to remember the right sequence of backgrounds and repeat that growing sequence by tapping the right balls.

If you don't have time to play, don't worry: the sequence remains valid in the watchface's memory, until you want to continue...
...will it remain in your brain all the time?

The configuration settings of the BrainTrainer Watchface allow you to select colors among many choices, to find your preferred style.