New in 10.3.3: a circuit goes to our server only when it truly needs it, and only after you tap Send. On Team and Enterprise, Turbo keeps big Clifford circuits on-device.
Design, run and understand quantum circuits on iPhone, iPad and Mac.
SwiftQuantum is a native quantum circuit IDE for students, educators and developers. Build a circuit, run it, and see what it does — with clear rules about where your work goes.
BUILD CIRCUITS YOUR WAY
• Drag-and-drop editor with the standard gates: H, X, Y, Z, S, T, rotations, CNOT, CZ, SWAP, Toffoli and more
• Start from ready-made circuits such as Bell and GHZ states
• See measurement probabilities for every run
RUN ON YOUR DEVICE
• Free plan: the Standard engine runs circuits up to 10 qubits on your device
• Paid plans: Turbo and HyperCore engines simulate general circuits up to 25 qubits on your device
• Every engine computes exactly the circuit you drew, in shot mode too
• On Team and Enterprise, Clifford (stabilizer) circuits up to 127 qubits run on your device — tested on a real iPhone in airplane mode
• A circuit goes to our server only when it needs it (more than 25 qubits with non-Clifford gates), and only after you tap Send
AI THAT STAYS ON YOUR DEVICE
• Optional: download a compact AI model once, describe a circuit in plain language, and get a circuit back — generated with no network
• Your prompts stay on your device
• Accepted results are sealed into a local, tamper-evident record you can check in Settings. A seal shows the generation happened on your device; it does not guarantee the circuit is correct
• Off by default; delete the model whenever you like
ERROR CORRECTION (TEAM AND ENTERPRISE)
• Run surface-code experiments on our engine: choose the code distance, physical error rate and decoder
• See the logical error rate from Monte Carlo shots with a 95% confidence interval
TAKE YOUR WORK WITH YOU
• Import and export OpenQASM, and convert circuits to PennyLane and CUDA-Q code
• Inspect a circuit's unitary matrix and compare gate fidelity
KEEP A RECORD OF WHAT YOU RAN
• Q-Footprints: an opt-in practice log of the simulations you run on your device
• Your circuit itself is never sent — only the shape of the run
• A seal shows a run happened; it is not a skill score or a certification
BUILT FOR THE WAY YOU WORK
• Native on iPhone, iPad and Mac
• Available in 7 languages
• Free to start
Who it's for: students learning quantum computing by doing, educators teaching with real circuits, and developers prototyping quantum programs.
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SwiftQuantum is free to download with optional auto-renewable subscriptions. Payment is charged to your Apple ID at confirmation of purchase and renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Prices are shown in-app.
SwiftQuantum is an independent tool for education and research and is not affiliated with or endorsed by any quantum hardware vendor.
Terms of Use: https://legal.swiftquantum.tech/en/terms/
Privacy Policy: https://legal.swiftquantum.tech/en/privacy/
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Results you can trust, and privacy you can predict.
• Every engine now computes exactly the circuit you drew. S, T, CZ, SWAP, Toffoli and Fredkin gates are never skipped — in shot mode too.
• On the free plan, the Standard engine now runs your circuits on your device instead of our server.
• A circuit is sent to our server only when it needs it — more than 25 qubits with non-Clifford gates — and only after you tap Send. Smaller circuits no longer show the prompt: they always run on your device.
• On Team and Enterprise, the Turbo engine now runs large Clifford circuits (up to 127 qubits) on your device, just like HyperCore, instead of sending them to the server.
• OpenQASM import now works: paste a program and get the circuit, with a clear message for anything unsupported.
• Error correction (Team and Enterprise): surface-code experiments now run as a real Monte Carlo on our engine and show the shots, the decoder and a 95% confidence interval.
• The Bloch sphere shows each qubit's actual state, including mixed states. The QFT example is now a real QFT, and circuit depth counts layers.
• Subscriptions show App Store prices in your currency, and a purchase unlocks right away.
• Sign-up now checks your email address on the spot and explains problems clearly (address already in use, invalid address, too many attempts).
Thank you for building with us. Questions and ideas are always welcome.
Version 10.3.3
The developer, EUNMIN PARK, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
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