You look for an app to count by pressing a button, because you've come to the right place. Although with a bit ... random addition.
This app works like the usual counters, you press a button and the counter increases, in addition to being able to reset the value. But every time you increase the counter, the colors of the app change randomly.
Can you achieve the impossible? Can you get all colors to be the same at the same time? You can try, but only luck will decide.