You can still get it on Android I believe. It is cards...each suit is a predetermined exercise, and the face value is the number you do of them. So if hearts is pushups and spades are burpees..Rip deck? Lol, it looks like an app for playing cards.. I'm android.
You pull the 10 of hearts...10 pushups
Then you pull the 10 of spades...
10 burpees. And it times it all for you, and records it so you can compare. I know SEVERAL Navy SEALS that use it, while deployed especially.