Now on the App Store
Every dice app hides a rand() call. Quantum Dice Roller makes the randomness
a visible choice: pick where your bits come from, and the app shows you exactly what
produced the roll.
Android soon An Android version is in development.
Randomness drawn from the physical world rather than a formula — every roll a genuine collapse of possibility.
Choose your source
Each source is real, and each one is selectable before you roll. The dice maths sits on top of whichever you pick, using rejection sampling so the result stays unbiased.
On device · instant
Hardware randomness from the dedicated security chip built into your iPhone — the same generator iOS trusts for cryptographic keys. It works entirely offline, returns instantly, and is the default for every roll. It's also the safety net: whenever another source is unreachable or its output fails a quality check, the roll falls back here rather than failing.
Physical · optical
Photon shot-noise sampled through your camera sensor — genuine physical randomness harvested from light itself, then whitened before use. Every capture is measured before it's accepted: cover the lens and the noise fails its health check, the sample is refused, and the roll falls back rather than passing off bad entropy. Frames are read for noise and discarded — nothing is saved or transmitted.
Public · verifiable
A cryptographically signed randomness pulse published by the U.S. National Institute of Standards and Technology. Each pulse is chained to the one before it, so the sequence can't be quietly rewritten after the fact. Because the value is public, anyone can look up the exact pulse your roll consumed and confirm the number wasn't chosen — the rarest property a die can have.
Coming soon · cloud hardware
The deepest source: send a sampling circuit to a real superconducting quantum processor on IBM Quantum Cloud and roll on what comes back — bits from genuine qubit measurement rather than a simulation of one. Connect your own IBM Quantum credentials, and the roll is tagged with the backend that ran it.
Provenance
When the app rolls, it stamps the result with a SHA-256 hash of the exact bytes it consumed, tagged with the source that produced them. Your history shows what actually happened, roll by roll.
That honesty matters most when something goes wrong. If a source is unreachable or its entropy fails a health check, the roll falls back to the Secure Enclave — and says so. A roll that reads "Lens QRNG unavailable — rolled on Secure Enclave" is telling you the truth rather than dressing up a substitute.
Privacy
No accounts, no analytics, no ads, no third-party trackers. Your roll history stays on your device. The app has no server of its own.