
A sense-of-time contest for a group, each on their own phone. Tap to start, then tap again when you think seven seconds have passed. Whoever lands closest wins, and the order settles who buys the coffee or takes the forfeit. The counter hides itself after three seconds, so you are measuring with your own sense of time rather than reading a number off the screen. The clock is the server's, not your phone's — the server stamps when the round opened and when your stop arrived, so changing your device clock or poking at devtools does not help. Playable alone as a personal best. Open a room and you get a link and a QR code; whoever joins picks their own name from the roster. There is no money or points anywhere in the app.