This app was mentioned in 3 comments, with an average of 1.33 upvotes
One of our test device was an S6 so it should work on it. Here's the link for the app: https://play.google.com/store/apps/details?id=com.hydragraphics.armyofpixels
Hope you will like it :)
I thought it was this but the art doesn't match.
It should be compatible every phone and tablet with andorid 2.3 and up Here is the store link: https://play.google.com/store/apps/details?id=com.hydragraphics.armyofpixels