Monium
Superconducting qubit lab
Only for iPhone
$3.99
iPhone
Interactive superconducting-qubit physics in your pocket: sweep parameters and watch spectra, wavefunctions, matrix elements, and coherence times update live.
Monium puts superconducting-qubit physics in your pocket — a mobile companion to the open-source scqubits library, built for researchers, students, and the quantum-curious.
Pick a qubit, tune its parameters with live sliders, and watch the physics update in real time:
• Energy spectrum vs. any swept parameter
• Wavefunctions over the potential (and in the charge basis)
• Matrix elements as a heatmap, and vs. the swept parameter
• T1 / T2 coherence times per noise channel
• Exact computed values behind every plot, as tables
Supported qubits: Transmon, Tunable Transmon (SQUID), and Fluxonium.
Built for real work:
• Enter the Josephson energy the way you measure it — critical current, junction inductance, or room-temperature normal-state resistance (with a cryo/room ratio).
• Save and reload presets per qubit.
• Convergence indicators so you can trust the numbers.
Everything runs on-device. No account, no ads, no tracking, no network — your work stays on your phone.
Monium mirrors scqubits' conventions and is validated against it, so the numbers match the desktop tool you already trust.
Ratings & Reviews
The developer, Jens Koch, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jens Koch
- Size
- 43.6 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Jens Koch
