CurieSim

The virtual radiation lab

$3.99 · Designed for iPad. Not verified for macOS.

iPad

CurieSim brings the classic nuclear-physics school experiments to the iPad and becomes a full alternative to real experimental setups. Where a whole class often has to share just a few sources and instruments, with CurieSim your students always have their own lab with them and experiment independently and completely safely. Count rates, spectra, ranges and energies are simulated just as realistically as the behavior of the individual measuring instruments. Even the background count rate, the dead time of the counter tube and statistical fluctuations are taken into account. Thanks to the intuitive controls, every experiment is set up in seconds — from a simple determination of the background rate to the backscattering of beta radiation. Features: • around 20 radioactive sources (directional and non-directional emitters, isotope generators, …) • various absorber materials • a range of detectors (Geiger-Müller counter tube, semiconductor detector, germanium detector, ionization chamber, dosimeter, …) • adjustable magnetic fields • cloud chamber for visualizing particle tracks • vacuum and thoron chamber • share or save experimental setups and spectra as PNG files • Light and Dark Mode

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Bug fixes

Version 1.1

The developer, Roland Wejner, 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.

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    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Roland Wejner
    Size
    10.1 MB
    Category
    Education
    Compatibility
    Requires iPadOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    English and 11 more
    • English, Danish, Dutch, Finnish, French, German, Italian, Norwegian Bokmål, Polish, Portuguese, Spanish, Swedish
    Age Rating
    4+
    Copyright
    © 2026 Roland Wejner
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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