Great for the brain
Fun brain teasers for review of quantum experiments. Will keep you busy and engaged.
Challenging
Going against quantum entanglement? Super challenging - good luck fighting the machine!

Engage with real quantum physics experiments by predicting measurement outcomes from actual quantum computer data. Compete against an AI leveraging quantum entanglement and discover the quantum advantage through interactive gameplay and lessons.
1.1
February 15, 2026
Bug fixes for multiplayer mode.
Quantum Bob is an educational game that allows you to play with real quantum physics experiments. You predict measurement outcomes from actual quantum computer data and compete against an AI that uses quantum entanglement.
Yes, all quantum data in Quantum Bob comes from real IBM quantum hardware, specifically measurements of entangled qubit pairs from IBM's Marrakesh quantum processor. No simulations or random number generators are used.
Quantum Bob teaches quantum concepts through interactive lessons on entanglement, Bell's theorem, and the Tsirelson bound. Contextual tips are provided during gameplay, and the app starts from zero with an interactive tutorial.
Yes, Quantum Bob offers local pass-and-play multiplayer, allowing you to challenge friends. It also features Game Center leaderboards for global competition.
The quantum advantage is the edge that quantum entanglement gives Alice, the AI opponent. Without quantum physics, the best accuracy is 75%, but Alice's entangled particles push her to about 85%, a gap impossible without quantum mechanics.
Yes, Quantum Bob is designed for users with no prior physics degree. The interactive tutorial explains everything from basic concepts to the nuances of quantum mechanics, making it accessible for beginners.
Quantum Bob is available on iPhone and iPad devices, as indicated by its supported devices list.
Quantum Bob was last updated on February 15, 2026, to version 1.1. This suggests a recent update, and users can expect ongoing support and potential future improvements.