Set up your class jobs (WhirlPicker calls them roles) and fill them all at once with different students who are here today. Each job rotates, favouring students who haven't done it recently.
WhirlPicker favours students who have held a job least recently, so jobs rotate around the class over time.
WhirlPicker tells you how many students are missing instead of doubling anyone up.
Yes. There are no ads, no accounts and nothing to install, and names never leave your device.