Sapling Isle: Physics Lab
3D Experiments & Space
Free · Designed for iPad. Not verified for macOS.
Make physics move: explore the 3D solar system and interactive labs, read richer formula guides with constants and trusted sources, then share them as A4 PDFs.
Sapling Isle is a multilingual interactive science lab that connects observable phenomena with advanced scientific concepts on iPhone and iPad. Change variables directly, observe how a system responds, read graphs and measurements, then explore the equations, assumptions, and limits behind the model.
Explore nature and the universe
• Control a 3D Solar System and observe planetary motion and astronomical time
• Follow curved light, an accretion disk, and Einstein rings around a black hole
Enter a hands-on physics lab
• Explore forces, motion, heat, energy, magnetic fields, light, and atoms
• Compare heating, compression, and diffusion in a 3D microscopic world
• Investigate orbits, waves, entropy, Boltzmann distributions, quantum tunneling, and double-slit patterns
Explore at your own depth
• Start with direct manipulation and visual feedback
• Continue with multivariable comparisons, measurements, and graphs
• Go deeper into equations, approximations, and model boundaries
• Choose from 10 interface languages
• Adaptive layouts for both iPhone and iPad
• No account, advertising, or cross-app tracking
• Progress, camera frames, and experiment data are handled primarily on device
Pick an island, begin with a phenomenon, and follow the evidence toward deeper models.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New in 1.2.0:
• A redesigned light formula reader with deeper explanations, constants, conditions, and sources
• Export and share formula guides as A4 PDFs
• Consistent experiment cards and clearer expand/collapse controls
• Better space allocation in telescope and magnetic-field labs
• Country and city labels on Earth’s satellite map
• Stability and layout improvements for iPhone and iPad
The developer, 大鹏 张, 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
- 大鹏 张
- Size
- 41.5 MB
- Category
- Education
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 9 more
- English, French, German, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Dapeng Zhang