Everything about the app, the math and the design.
No. Casino Roulette Odds Lab is an educational app about the mathematics of roulette. There is no money, no betting, no purchasable currency, and nothing to win or lose. Every simulation uses imaginary units to demonstrate probability.
Yes — completely free, with no ads and no in-app purchases. We do not sell data or run advertising.
Fully accurate. A European single-zero wheel has a 2.70% house edge (1 in 37) and an American double-zero wheel has 5.26% (2 in 38). Payouts follow the standard table: 35:1 straight-up, 17:1 split, 11:1 street, 8:1 corner, 5:1 six-line, 2:1 column/dozen, 1:1 even-money.
It spins a perfectly fair wheel hundreds or thousands of times — every pocket equally likely — and plots the running result. Because the payouts carry the built-in house edge, the line drifts below zero over time. You can also test staking systems like Martingale and watch them bust.
300 questions across 20 categories — wheel basics, bet types, odds, house edge, expected value, the gambler's fallacy, betting systems, variance, history, terminology, and more. Every answer comes with an explanation.
Six: English, Russian, Spanish, German, French and Portuguese. You can switch any time in Settings, and this website offers the same six.
Soon. Both store buttons show “Coming soon” until launch. Follow along or contact us to be notified.
Yes. The calculator, simulator, lessons and quiz all run on-device with no account required.
