Only shows a link for iOS and it also says "concluded" so it sounds like even if I had an Apple device, it has been shut down?
If so, I'm very tempted to make a variant that uses email since I'll run an email server with cronjobs forever anyway (for my other million projects). Will shoot the author a (you guessed it) email to check if they're okay with that when due credits are given!
The app is still available on iOS but if you open it the screen only shows "THE END" and a winner is announced. It also says, "Stay tuned for hte next game.". So, maybe it is dead now.