Some things are saved on your phone or in your browser: a random device id that lets you rejoin a room, the rooms you were in last, the name you used, your sound and light or dark choice, and a host's sign-in. The device id and name are sent to us when you join a room, so the room knows who you are. Private marks, like the numbers you tick on a Tambola ticket, stay on your device until you claim a win. The app needs these to work, so there is no cookie banner.