Pass the phone. Pray it doesn't stop on you.
One-time purchase. No subscription, no trial, no account. The game runs 100% on your phone — no internet needed to play once it loads.
Example stakes: "You have to walk the dog." "I get to pick the movie." Scoreboard keeps the It count — Dog Walker of the Week energy.
Open the game, and the first screen shows you how: iPhone — Share → Add to Home Screen. Android — Install app / Add to Home screen. The clock icon lives on your home screen after that.