Flip a fair coin
Compare heads and tails, then watch short-run variation settle as the number of trials grows.
Two equally likely outcomesA hands-on probability lab for Android
See chance take shape.
Make a prediction, run a fair experiment, and compare what happened with what probability theory predicts—clearly, playfully, and at your own pace.
- Fully offline
- No accounts or ads
- Progress stays local
Three simple labs
Start with a question. Build intuition with evidence.
Each experiment turns an abstract probability into something you can predict, run, and inspect.
Roll a six-sided die
See how six theoretical probabilities line up with the outcomes produced by a fair die.
Six outcomes, one clear viewBuild a spinner
Choose from two to eight equal sections and explore how the number of possible outcomes changes probability.
A configurable visual experimentHow it works
Prediction becomes understanding.
Run 1, 10, 100, or 1,000 trials. Clear result bars keep observed percentages beside their theoretical probabilities.
Predict
Choose what you expect before revealing an outcome.
Run
Generate a single result or gather evidence across larger samples.
Compare
Connect what you observed with what probability predicts.
Private and offline
Learning without the noise—or the tracking.
Chance Lab has no accounts, advertising, analytics, tracking technologies, or network services. Aggregate learning progress stays on your device and can be reset whenever you choose.
- No personal-data collection
- No sensitive permissions
- No sign-in
Play. Learn. Evolve.
Curiosity is a good place to begin.
Playphi Chance Lab is coming soon to Google Play. For product or privacy questions, get in touch with Playphi.