When a challenge enters Judging mode, it stops accepting submissions and joins the pool of challenges on the Judging screen. Players are shown 10 entries per challenge, in pairs; tap on the entry you like best. Entries are anonymous until you tap, and then the owners of the entries + their scores are shown.

The more people vote for your plate, the higher the star rating.

When a challenge's judging period is over (usually a day or a little more), the entry is removed from the judging pool and results are sent to participating players.