It has approx 100 card like topics about game design that you should look and think about one of them each day. It used something like a yugioh/MTG card layout.
Sorry that is all I remember.
Whenever I use an app or want to play a game I uninstall the moment they force ads on me. Since this is what Google wants they always force this type of applications in my search.
Button ads are fine(where you press a button and see an ad) but I could not find a way to differentiate them from the store page.
For example Can you find a "Bubble Level" app without any ads? I am sure there is one there, it is just impossible for me to find it.
Something like Pokémon GO, but the focus should be on walking, not the game. I just want an app that gamifies walking; it should be there to encourage me to walk, not play.