This app was mentioned in 4 comments, with an average of 1.50 upvotes
There is a similar game/app on Android called Square colors. It works in basically the same way, except there is always the same amount of squares. It's even made by a redditor!
There is also a similar Android game that is pretty addicting.
https://play.google.com/store/apps/details?id=com.brianreidy.squarecolors&hl=en
Hey! What if this game was an android app? And you could play it for FREE now? Just helping yall out