Fixes an issue that could prevent previous paid-app customers from restoring access or new customers from purchasing lifetime access. Improves purchase record compatibility checks and diagnostics.

- Added 44 visual explorations covering electron clouds, nuclear decay, electrical and thermal conduction, the origins of elements, and more. - Added temperature changes, density, and weighing features to visualize phase changes and differences in mass and volume. - Improved experiment animations and page layouts, and added a haptic feedback toggle. - Fixed issues that could prevent purchasing lifetime access or make the purchase button unavailable.

1. Added 44 visual experiments with adjustable parameters to observe changes. 2. Added explorations of electron clouds, atomic ionisation, nuclear decay, and isotopes. 3. Added experiments on electrical and thermal conduction, deformation, optics, and superconductivity. 4. Added 3D exploded views of everyday objects and mineral crystal cross-sections. 5. Added explorations of the cosmic origins of elements, plus maps of mineral resources and element discovery history. 6. Added demonstrations of gas diffusion, phase diagrams, and element cycles.

Fixes in-app purchase availability for the Advanced Exploration pack and optional tips.

This update improves scientific data displays and model interaction: • Organic structures: Clear, scalable textbook-style diagrams support panning and selecting atoms and bonds, with molecular formulas, CAS numbers and data sources. • Spectra: NIST-based visible-range neutral-atom spectra support zooming, line selection, wavelength and intensity readouts, a rainbow wavelength scale and quick range selection. • Nuclear models: Improved spherical layouts and proton/neutron distribution, with default isotopes, nucleon counts and colour legends. • Magnetic diagrams: Added external-field controls and direction, net magnetisation, temperature, material-state information and reference notes. • Interface: Simplified settings and reorganised feature access, with improved full-screen model displays and layouts for different screen sizes. • Data notes: Missing data and the scope of illustrative models are clearly identified for easier learning and reference.

Version 2.0.0 brings a major update, making it easier to explore the elements and learn chemistry. • Refreshed interface: Redesigned home screen, navigation and element details make browsing, searching and reading easier. • 3D views of all 118 elements: Rotate and zoom in on element models. Some elements are represented by experimental equipment or other illustrative objects. • A richer browsing experience: Improved ways to explore element uses, specimens, property trends, compounds and the solubility table. • Core learning and advanced exploration: Basic information on all 118 elements and common chemistry tools are available at no additional cost. Try sample advanced models and choose a one-time purchase to unlock more content. • Existing customers: If you previously paid for the app, you retain access to advanced content without purchasing it again. • iPhone Duo: Layouts adapt to folded and unfolded screens. • More languages: Explore the elements using more interface languages.

1. Fixed some known bugs to improve the user experience. 2. Optimized various details throughout the app. 3. Improved overall stability for a smoother and more reliable experience.

bug fix

1.Optimization and update of some chemical element data. 2.Bug fixes and program stability improvements.

1. Some data errata optimizations. 2. Other bug fixes and program stability improvements.

1.Added AI parsing for elements. 2.Optimized details. 3.Other bug fixes and enhanced program stability.

1.Fixed a bug where opening the list of organic compounds failed to display. 2.Updated some icons. 3.Added pinyin pronunciation for Chinese elements. 4.Made some data corrections and optimizations.

1.data correction 2.bug fix

1.Bug fix 2.Performance optimization

1. Some data errors. 2. User feedback problem repair. 3.bug fixes.

1. Added element-related short stories. 2. Correction of some data errors. 3.bug fix and performance optimization.

1. The number of organic compounds increased to 10,877 2. Each chemical element can be screened for all organic and inorganic substances 3. Some performance optimizations and data corrections

1. Some organic compounds were added, bringing the total number of organic compounds to 8101 2. Some bug fixes

1. Add 5k organic compounds 2. All organic compounds of the corresponding element can be displayed 3. Inclusion compression optimization, faster download speed 4. Some users reported bug fixes 5. Adjust the scene loading sequence

1. Addition of position indicators in the solubility table. 2. Some corrections to multilingual translations. 3. Optimized startup speed by removing the splash screen. 4. Various bug fixes.

1. Add a solubility table. 2. Correct some elemental data errors. 3. Fix some bugs.

1. Add the Loading Scene 2. Optimize scenario switching performance 3. Some chemical data errors 4. The element usage interface can be dragged and scaled

1.bug repair 2. Some data errors 3. Performance optimization

1. Fix the penetration bug occurring after closing the organic compound pop-up. 2. Button sound control issues with the new interface. 3. Some data corrections.

1. Add some organic compounds (1-2499). 2. Correcting data for certain elements. 3. Bug fixes and performance optimization.