OrbitLab - N-body Simulator

Simulate star system

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Design and simulate custom planetary systems with undo/redo, time controls, and live orbital diagnostics. OrbitLab is a visual N-body gravity simulator for exploring orbital physics. Create custom systems with stars and planets, adjust their mass, size, position, and velocity, and watch them evolve in real time. Use undo/redo, time controls, orbit trails, and live diagnostics to experiment with stability and motion. OrbitLab makes gravity easy and engaging to explore. Compare the orbits of the planets orbit at the same time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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The new version has improved the simulation performance. It adds saving function, history charts, and some example systems.

The developer, SHIH-CHEN FAN, 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.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

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

    Seller
    SHIH-CHEN FAN
    Size
    6.9 MB
    Category
    Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 SHIH CHEN